Computer Reboots After 'starting Windows', Cannot Boot Into Safe Mode
Nov 21, 2011
Computer rebooted after 'starting windows' When starting in safe mode, it rebooted after loading classpnp.sys
This happened after I installed MSE and it detected a Trojan located in c:/windows. On hindsight deleting it was a bad idea.
I've tried using startup repair as well as sfc/scannow. I've also ttried unplugging the hard drives as well as changing the hard drive mode in the BIOS from ide to ADHCI and back.
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Jan 4, 2013
Yesterday I left my pc running, and when I came back, found a black screen.Rebooting, I came across some random characters in the POST and also in BIOS, after which, the same black screen. I googled this, removed the video card and the bios and post look normal now( i use the onboard video), but when trying to load windows, the pc reboots.I tried system repair, chkdsk. When trying to boot in safe mode, it loads up to "AtiPcie.sys", then reboots.
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Dec 8, 2011
I have a Windows 7 installation that I seem to be in an 'endless loop' on. First off, if I just let the system reboot, it comes to the windows 7 splash screen and then reboots again. This will happen endlessly if I let it.If I hit F8 during boot up, I do get the Windows 7 menu. I have tried using the 'repair' options, but they don't succeed in solving the problem. I have tried going into Safe Mode and that also reboots after getting to the 'CLASSPNP.sys' driver (at least that's what it displays on the screen).
So I thought I would just 're-install' Win 7. I boot from my Win 7 DVD, and my options are 'upgrade' or 'clean install'. If I do 'upgrade', the DVD tells me that I need to start Windows first and then run Upgrade. Of course, I CANNOT do that since Windows 7 won't start! I'm afraid to do CLEAN INSTALL as I don't want to lose all the files
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Jan 16, 2013
I am using acer laptop,intel Pentium processor,windows7 professional os,my problem is windows is not starting normally and is running safe-mode.when entering normal mode it is displaying "welcome" after entering password "Please wait",it takes a long time to starting window and i'm waiting more than 24 hours but its not starting window normally...but it starting safe mode.
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Jul 1, 2009
Reboots and Reboots, Tryed dual boot, Have too revert too prev Installation, Tryed everything Booting in safe mode, safe mode Comand prompt ect...
I Have a AMD 64 X2 Dual Core 6000+ 3.0 gigs of ram Radeon HD 3870 X2,, Dam It And They Want us 2 pay for this &*(%(*&^( &&^^^%%6 Sorry But I still Can't get my Vista &^%$#@$#$%^ Running either,Thank god the beta is free,Maybe ill try a Mac with linux....
Should i try i install it over Vista Instead,Last vista Beta fried my HDD.
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Oct 5, 2012
I can't boot my computer in normal mode or safe mode. When I try to do so, after the "starting windows" page the only things that come up are my mouse, a black screen/background, and a "logonui.exe-bad image- Authui.dll isn't designed to run on windows" error/message (not the exact message). I can't use a system restore (it can't find a restore point), the image recovery tool finds no image to restore from, system repair either doesn't find a problem or can't fix the problem, and basically nothing else works (none of the advanced boot options or other various buttons and tools do anything noticeable). I've even tried to use sfc in command prompt, but whenever I do any sfc things at all (/scannow, verifyonly, verifyfile, etc.) it says there is a system repair pending that requires a reboot. I've restarted 7-8 times and the exact same message keeps coming up. I'm looking for any general help I can get right now, [I can post my computer specifics in an hour when I have time](posted a few). I have an HP pavilion dv6-6135dx wiht Windows 7 x64.Processor: AMD a8-3500m APU, raedon graphics bios vender/version: insyde, f. 20.I'm having trouble getting more info because my computer is still crashing occasionally and I don't really know what else is relevant; if you need more, I might need directions on how to get it. Especially if it involves command prompt.I should also add that it has been crashing more often than I think is normal ever since I got it, but recently it BSODed 3-4 times a day. I have antivirus and also ran a full malwarebytes scan yesterday, and it only found one little issue which was resolved.
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May 24, 2012
I seem to be having quite the problem on a computer of mine. After recently installing the directx sdk I am unable to logon through normal or safe mode. When I try to boot up normally, I log in but then the monitors go black but everything else seems to run. Pressing ctrl alt delete works and brings up the screen again but if I try to select task manager for example the screen goes black again. When I boot up through safe mode the computer restarts seconds after loading the windows logon screen.
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Feb 8, 2013
It will only stay booted in Safe Mode. When I start the computer, it boots up, stays booted for a few minutes, then the screen goes black and it reboots. This keeps happening unless it is booted in Safe Mode. Purchased with Vista; I clean installed Windows 7 Home Premium (I know it's legit, bought it for her myself) when Windows 7 first came out.
When I turned it on, it rebooted so I started it in Safe mode and have tried/found the following problems: It had 4 adware programs and one trojan horse; removed those with Malwarebytes. Rescanned with Malwarebytes and MS Security Essentials, came out clean - Device manager showed two problems - bad drivers for co-processor and bad drivers for Graphics card. Installed those drivers and the Device Manager did not show anything wrong. Problem keeps happening.
Opened BIOS and ran both Hard Drive and Memory Diagnostics; no problems found, Did not make any BIOS changes (I have little experience with BIOS) - Ran diagnostics with Windows 7 disk; including Repair, Memory Diagnostics; no problems found - Graphics card is NVIDIA GeFroce 7150M/nforce 630M; reinstalled drivers, didn't work anything - When the screen saver goes on, there is an error message. "The screen saver can't run because it requires a newer video card or one that's compatible with Direct 3D".
This is an old computer, well out of warranty. Do I still possibly have an embedded virus? What removal tool should I get? Is it worth replacing the graphics card - if that's possible on an old laptop? Should I try a clean install of Windows 7?
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Jul 1, 2011
I tried to install Internet Explorer 9 for testing a website. It prompted me to restart after the install, so I did. It never started back up. Now my computer will not boot into windows except in safe mode and system restore doesn't facilitate at all.
This is my ntbtlog.txt:
[code]Microsoft (R) Windows (R) Version 6.1 (Build 7600)
5 29 2011 02:49:09.125
Loaded driver SystemRootsystem32
toskrnl.exe
Loaded driver SystemRootsystem32hal.dll
Loaded driver SystemRootsystem32kdcom.dll
Loaded driver SystemRootsystem32mcupdate_AuthenticAMD.dll
Loaded driver SystemRootsystem32PSHED.dll
Loaded driver SystemRootsystem32CLFS.SYS
[Log] .....
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Aug 7, 2012
my Sony VAIO VGC-LA3 seems to have a problem. I recently did a clean install of windows 7, which was no problem and completely drama free. I then sourced all the relevant drivers and installed a few essential programs and updates to get the machine up and running. I was then prompted into doing a restart so the updates could be installed. Upon restart the machine came on, start up options flashed up as normal and proceeded to the windows loading screen. The screen then goes black and shows no sign of coming back on until I bet the 'blue screen of death' 5 minutes later. The HDD and WIFI light do flash during these 5 mins. Then the computer restarts after the BSOD and says that Windows wasn�t shut down correctly etc� I chose to start normally and the same thing happens again. I then chose to start in Safe Mode With Networking and the machine would go through the start up procedure as expected, loading the OS with only basic drivers. I have tried wiping the hard drive and doing another installation of 7, with no success, and have also tried Vista, with the same result.
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Dec 24, 2012
Whenever I would boot my computer, the splash screen would hang and would not move onto the password screen. I would then have to restart my computer and activate safe mode so I can access system restore, find a restore point and go back to how it was earlier. I know for a fact that the Windows updates have been the key problem here, so I always backtrack a few system restores before that.
Now, the problem has come back and my restore points are ALL GONE. As I'm typing this, I am running SFC /SCANNOW, and here is the message that comes up at the end:
WINDOWS RESOURCE PROTECTION DID NOT FIND ANY INTEGRITY VIOLATIONS.
Also, I cannot access system protection. On the System page, there are only three options, when there should be four. What is going on here? If I try to restart my computer without safe mode, it will just hang again.
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Feb 21, 2011
I am running Win 7 64 bit and would like to start in Safe Mode to run a security scan. The problem My keyboard is bluetooth so there is no way I can restart and push F8 and get an option for Safe Mode prior to Windows starting up in normal mode. I understand this can be done from the command prompt and am willing to try but I am not really an advanced user.
Worked like a charm. Yes, MalwareBytes and Security Essentials.
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Mar 11, 2012
my computer will not boot up normally or in the safet mode after installing Norton Power Eraser. Performed the following actions:1. Attempted to use System Restore, program will run but failed.2. System Repair also failed.3. Performed the following steps from your Forum Dated Feb 2012 (Computer will not boot after using NortonPower Eraser echnician is OH MYa. Diagnose Blue Screen Error 0x0000007b (0xFFFFFF88009A98E8, 0xFFFFFFFFC000000D, 0x0000000000000000, 0x0000000000000000.Performed a Chkdsk/r from Recovery Environment, no problems detected.Can only boot it up after reseting "/NOEXECUTE=OPTIN" all the time.
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Oct 29, 2012
I have a Dell Studio XPS8100 running with Windows7 Home Premium Service Pack1, 64-bit OS.When I purchased it I also had Dell put in a Tv card (Hauppauge WinTv HVR-1250) figuring I might be able to watch some of the Tv Channels from the area where my family lives.Anyway here are the list of issues I have been having over the past couple years. The first issue I noticed was when I went into Windows Media Center and clicked the Internet TV feature or the program, the Windows Media Center program would shut down. So I called Dell and they worked on the issue for a couple of sessions that included numerous hours of my time and might I add the difficulties in understanding the tech, but the end result was that the issue was never fixed and so I just gave up on the tv feature all together and started using the computer to do Cad drawings which is the main reason I had purchased the unit.
Over the next couple of years working with the unit I noticed that once in a while Explorer would stop working and restart itself once in a while, Then the other day I installed a new Cad program and the program would starts itself to the part of the program where I would start using it and then just dissapears of the screen.In the same fashion that Media Center did. So in trying to figure out if I could fix the issue, thinking that perhaps another program might be conflicting with the Cad program, I decided to start the computer in Safe Mode, when I do that the computer boots in safe mode to the Log in window where I have to put my Administrator password and then automaticly restarts itself in Normal mode without letting me put any of my password in.Other things I did was add the title of my cad program to the allow list of the firewall, I have scanned the whole system five times with different Malware and virus program with no virus or infections found.
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Oct 14, 2012
I was on my computer today (Win 7) and programs just started shutting down and the computer reset. The computer starts back up (Asus) and when it gets to the point where windows starts, the screen goes black and there is a blinking cursor line. Not buttons work at that point.In my manual for the Asus and it says to select a boot device, press f8 when he Asus logo appears, to access Windows in Safe Mode press f8 after post. I start pressing f8 at all different times, but all I can get is the boot device menu or a blank screen.I put in the WIN 7 disc and told it to do a startup repair - it says nothing is wrong. I try a system recover from a few days ago, and it has an error and can't do anything.I was running Norton Virus and it didn't pick up anything before the crash, I also have Norton Ghost and I think I have a backup from a few days ago. But I can't seem to access anything
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Oct 14, 2012
I was on my computer today (Win 7) and programs just started shutting down and the computer reset. The computer starts back up (Asus) and when it gets to the point where windows starts, the screen goes black and there is a blinking cursor line. Not buttons work at that point. In my manual for the Asus and it says to select a boot device, press f8 when he Asus logo appears, to access Windows in Salf Mode press f8 after post. I start pressing f8 at all different times, but all I can get is the boot device menu or a blank screen. I put in the WIN 7 disc and told it to do a startup repair - it says nothing is wring. I try a system recover from a few days ago, and it has an error and can't do anything. I was running Norton Virus and it didn't pick up anything before the crash, I also have Norton Ghost and I think I have a backup from a few days ago. But I can't seem to access anything.
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Nov 20, 2012
This morning i turned on my PC, and for the first few minutes it worked fine, but then it turned horrible. Everything froze when i attempted to click it or even hover my cursor over it. I tried to open task manager to shut down Firefox, but it took around ~20 minutes for task manager to open. Once everything was closed, I scanned with MBAM Pro and nothing was found, so I read about this on other sites. They said to clean the registry with a program called WiseCleaner. It took me 15 minutes to get it, but when it finished scanning it found 853 problems in the registry. I also defragmented the registry. Also, whenever I try to boot into safe mode, my computer freezes at CLASSPNP.SYS. Not sure what to do now, as no improvement was made.
Specs: Windows 7 Home Premium SP1, Intel Core i7 Q740, 6 gigs of RAM, ATI Radeon 5850m
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Oct 7, 2012
I have an ASUS laptop, yesterday i left it alone for a few hours and I came back to a message saying "reselect boot device" I was able to get past that, I am not sure how but I did. Now today if I try to run my laptop in regular start up it freezes about 5 minutes later and then goes to blue screen. I can run my laptop in safe mode and safe mode with networking fine. I do not have any restore points (wasn't aware that windows 7 didn't automatically create restore points) so I can't restore back to a previous version. I can get a boot log and a cbs log. I don't know if its a hardware problem (I dropped my laptop two days ago about a foot and a half and it landed flat, no dents or anything. It worked fine after that) or if its a virus problem. I recently downloaded a new album (same day I dropped my laptop) but it worked fine after that as well.
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Jun 3, 2012
After attempting to start my Laptop in Safe Mode, it loaded drivers normally only to crash a few seconds later. A prompt message appears but is impossible to read because Windows immediately reboots upon showing the prompt.
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Apr 11, 2012
When I turn on my Acer laptop normally it loads but then completely freezes, not letting me do anything. The only way I can use it is through safe mode. It was working fine before it suddenly broke and it is only a few months old. I thought it might be a virus? I do have up to date anti virus thoug
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Mar 15, 2010
I have just reformatted my pc and know i cannot boot into safemode,whenever i try to load up safe mode the pc just resets once i actually getthe windows welcome logo come up just as im about to enter safemode desktop,i have scanned for malware using malwarebytes,bitdefender and superantispyware,but have found nothing
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Aug 11, 2011
The other night I hit the reset button at the wrong time and ever since then I'm only able to boot W7 in safe mode. I've tried all of the restore points and repair options but nothing works.
I ran chkdsk from safe mode command prompt and corrupt files were found but I can't run chkdsk /F because the partition is in use. When asked if I'd like to schedule one on next start up I say yes but the restart doesn't get far enough to initialize one. It just hands at "Loading Windows" just after the keyboard lights blink.
I've tried to do an upgrade install but you can't do that while booting from the cd or while in safe mode either.
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Jul 11, 2012
sometimes it will reboot in Start-up repair but later i will lose internet connection, then (try to) reboot, then it will not. It's a mindless loop
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Jan 2, 2013
cant start my computer. wont load windows. in safe mode it just sits there doing nothing. in regular mode the windows logo comes up and just sits there. cant reboot it. don't know what to do next.
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Jan 12, 2012
I access the safe mode boot menu by pressing f8 during start up. Once there I choose boot in safe mode, hit enter and then windows lists the drivers it is booting with. The boot continues, however once done, the computer is not in safe mode, but is in normal operating mode (i.e. there are no "safe mode" indications at the perimeter of the screen, and all apps are up and running as usual).
I am not trying to fix any problem, I just wanted to be sure safe mode was there in case I needed it. A couple of days ago I actually had a piece of malware that disabled my Avast anti-virus and was preventing me from accessing the internet, and at that time I tried to boot into safe mode and had the same problem. I restored the computer with an image I had taken when the machine was new, which resolved the malware problem, but not the safe boot problem.
Incidentally, I have looked at the registry and the safe boot entries are intact:
(HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSafeBoot is there along with it's subkeys Mininal and Network).
I am using Avast anti virus (paid version), Libre Office, Skype, Firefox and have a HP office jet 4500 printer. The machine is an ASUS U43F with an I5 processor.
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Dec 18, 2011
I am working with an emachine with windows 7 home premium installed. Tech Support Guy System Info Utility version 1.0.0.2 OS Version: Microsoft Windows 7 Home Premium, 64 bit Processor: AMD Athlon(tm) II X2 250u Processor, AMD64 Family 16 Model 6 Stepping 2 Processor Count: 2 RAM: 3839 Mb Graphics Card: NVIDIA GeForce 6150SE nForce 430, 256 Mb Hard Drives: C: Total - 703013 MB, Free - 637698 MB; Motherboard: eMachines, MCP61PM-GM Antivirus: None Was given machine with infections, tried to fix viruses with HDD installed but could not boot normal, only safe mode.Removed HDD and slaved to working system and ran virus scan. cleared 18 viruses, ran a second scan on drive and it came back clean (used norton antivirus)Loaded the HDD back into the machine and still can only boot into safe mode. Searched forums and saw similar issue and followed instructions listed below:Open Regedit.exe Navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSafeBoot Delete the subkey folder called OPTION Navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerEnvironment Delete the value called SAFEBOOT_OPTION Reboot and done The problem is, there is no option subkey under HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSafeBoot I did delete the SAFEBOOT_OPTION under HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerEnvironment and restarted. It booted in safemode and when I checked regedit again. the SAFEBOOT_OPTION under HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerEnvironment was back and shows Minimal under it. I changed it to normal and restarted and it changes back to minimal after booting to safemode again.
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Apr 11, 2012
When I turn it on, it loads the compaq screen, then says "windows is loading files". It then attempts to take me to the startup repair screen, but cannot load the startup repair options and just stays at a blue screen (NOT the blue screen of death).
I am unable to start the computer in safe mode as it gets to the same screen and does the same thing.
I have accessed the boot options screen and loaded windows from the disk in an attempt the repair it that way but I can not restore the computer from an earlier point in time and startup repair does nothing but search for problems for hours with no progress.
Im running windows 7 home edition 32bit The computer is a compaq presario CQ42
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Jan 1, 2012
I'm working on my brother's girlfriend's Dell Inspiron 1764 that will begin to start windows and then immediately goes back to the post screen. I have tried to do a system restore, and recover from a system image... but of course she has made neither of these backups. The laptop will not load windows in safe mode and i have also tried to disable driver signature enforcement. I'm not exactly sure what happened before the failure, but i know my brother installed a Honda data logging program called HONDATA right before it crashed so I am suspecting some sort of driver issues. Is there anything else i can do besides the full Dell system restore that would wipe all of her data?
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Sep 27, 2012
I had a BSOD problem launching Borderlands 2, and some other games too. My Video Card drivers are up to date and i still have BSOD. I got blue screen once more, and my pc restarted. Now I can't even start my windows, I get some black screen before windows 7 logo appears and I can't even start my windows in safe mode nor can I boot from a CD/DVD.
My system specs:
Processor: AMD FX-8120
Graphics Card: AMD Radeon HD 6850
RAM: 8GB 1866mhz
HDD: 500GB
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Jan 10, 2013
I recently somehow got a nasty virus into my lappy. It was extremely weird since I just bought a new anti-virus (Norton, to be exact) and my PC became super slow. I recognized signs of viruses and I decided to wipe the PC clean. My friend gave two Windows 7 DVDs. However, even after making DVD the first boot order at BIOS it just doesn't work. My DVD rom makes really nasty sounds and it waits on a black screen for a bit and then it shows me to choose safe mode or start normally.
Basically, my PC has always read DVDs (logo on it confirms it). Also, Rom itself isn't broken, other discs like the Norton one work fine. Since the DVDs my friend gave me were DVD R- and DVD RW. Later, I got yet another disc which was DVD R+ but it STILL didn't work. My PC doesn't recognize the DVDs even normally, through My Computer. Did the viruses ruin my drivers or something? My rom always read DVDs but why make weird noises now?
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Nov 25, 2012
I have tried to start my laptop normally and in safe mode and it send me to start upi repair, this runs for two days and then I get an error message about no communications code 0xc00000e9
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