Repair Or Reinstall Operating System?
Oct 14, 2012
Acer Aspire 17.3 laptop. had black screen with a few words eg. no system. used F10 and now have Windows Boot Manager black page with Windows failed to start and 1,2,3 insert disk and restart. choose Enter and it offers Window 7 Enter or F8. all choices come back to these same 2 pages. Ctrl+Alt+Del brings me back as well. the following words apper each time. FILE windowssystem 32win load.exe STATUS oxc 000000f INFO the selected entry could not be loaded because the application is missing or corrupt
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Jan 10, 2012
I've tried to run the Windows 7 CD to repair but it does see any operating system or recovery points, is there another way to get my computer to start up?
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Aug 29, 2010
Shut down PC last night, all working perfectly. Today it won't boot with the "missing operating system" message. Have booted from Windows 7 installation disc, tried startup recovery - took 2 hours before reporting no automatic fix possible. It cannot find an installed Windows OS to do a system restore, so I attempted a "custom" clean re-install. However, I then get a "canot create system partition or find existing one" error message. I have tried to create a "New" one but nothing doing. I don't seem to have any HDD drivers to point to either.
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Oct 29, 2012
How to repair missing operating system in asus laptop computer
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Oct 10, 2011
Got my stuff ready to reformat, only to realize I don't have a Windows 7 recovery disc.I created a System Repair Disc using Backup & Restore in control panel but I'm unsure whether this is what I need to do a complete reinstall?I wanted to follow this guide to do a complete reformat, not a recovery.
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Oct 23, 2010
turns out that when i get to this window:
Instead of "Operating system: Windows 7" i get "Operating system: Unknown" and when I try to repair startup, it fails
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Dec 27, 2012
Ran F12 to regain Operating system - long version. Says computer passes everything but there's no operating system found. Did this Twice. Tried "Operating System" CD that came w/ Studio 17 laptop. Hit option to run via CD & never got anywhere after an hour. Tried Reinstall Hardware disk that came w/ laptop. It shows Vista, but laptop came w/ Windows 7. See where it shows the system's checking things out, but never get anywhere.
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Nov 16, 2011
I couldn't find Windows 7 Repair Disc / Repair System / rewrite MBR for x64?
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Nov 4, 2009
Created it with no problems, apparently at least. My BIOS is set to boot from CD drive, so why won't my machine boot from the system repair disk? There were no errors when disk was created. My machine just boots to windows.
Anyone else experience this with Win 7 Professional?
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May 23, 2011
I have a Dell Laptop that won't boot up anymore (BSOD), I have saved all the data on the drive and I want to re-install/repair windows but I do not have the original Dell Windows 7 DVD (and the recovery drive was nuked). I do have a copy of Windows 7 Ultimate on me and I was wondering if I could use that to do the re-install (and keep their valid Dell CD-Key)? Is this possible?
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Oct 10, 2012
Recently my old laptop (toshiba a200-1vo) stopped booting. I'd get the "windows has failed to start" message which led me to try to start it up in safe mode, command line mode, etc which all resulted in a black screen with a movable cursor.I then tried booting from my win 7 CD to either try using the recovery console or just format/install again with no avail. The installation only recognizes my hdd as "unpartionated disk space" and does not allow me to install windows 7 either "'Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure the disk's controller is enabled in the computer's BIOS menu" - I'm not sure what this means but I do have the bios configured to boot from windows 7 as first source. I then tried running the recovery console which failed to resolve my problems automatically and got the following message "windows boot manager is missing or corrupt". After this I think it became apparent my hdd has some kind of issue. I tried going into the console and manually format but windows only recognizes 1 disk partition (X: which is the Boot partition). I've tried a few commands like bootrec /fixmbr /fixboot /rebuildbcd but nothing seems to work. chkdsk can't even be started either since windows can't detect any partition either.
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Dec 1, 2011
I installed some software yesterday on my other PC and it seemed to cause some problems with another application so I uninstalled it via Remove Programs. On restart Windows 7 (Home Premium 64 bit) failed to start and all I got was a BSOD with the main error PFN_LIST_CORRUPT. After unsuccessfully trying to start in Safe Mode or Last Known Good Configuration I thought I'd try to repair the W7 installation using the W7 disc. (BTW - I don't know of any other options in W7 but would be grateful for any advice on that.) After powering up I pressed F12 to get a menu up and selected the option 'Boot from CDROM'. It seemed to be doing this and I got the message 'Windows is Loading Files'. I expected at that stage to be presented with an 'install or repair W7' option screen from the disc, like in XP. However, all that happened is that the OS proceeded to try and load, unsuccessfully, and went back to the BSOD. How do I get the disc to try and repair the install, or, if it comes to it, reinstall W7? I can't see those options. Do I need to amend the BIOS or something? (In the meantime I have put the disc in and chosen to run the Windows Memory Diagnostics Tool (extended option) in the hope of finding the problem. This has been stuck at 21% for about an hour.) PS - I don't know which details are relevant but motherboard on that PC is Gigabyte P67A-UD7, processor is Intel 2600k, with 8GB of RAM. It is not connected to the internet.
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Oct 25, 2011
Computer: Toshiba Satellite L455-s5976 2gb ram
I am in the process of trying to repair/reinstall Windows 7 32 bit home premium after a crash that has disabled my laptop. The computer has no longer booted properly after the crash occurred when I had to control+alt+delete out of a frozen screen. I do not feel the root of the problem is from a virus of any kind as I only visit mainstream websites and my virus protection/firefox has caught the very few instances I have ever run into. When it boots now, it starts normally showing the Toshiba logo then says "windows is loading files", then shows "microsoft corporation" with the moving green bar underneath and finally after a good while goes to windows 7 backdrop with nothing else showing but the mouse pointer.
I have tried a repair disc and booted from the DVD/CD drive to no avail. My system tools do come up for use but it will not boot into safe mode. It also shows no restore points. I did the memory diagnostic and nothing came of it. I have run startup repair several times and it just sits there running..the last time running it for 4 days straight continuous with no results. When the "System Recovery Options" box pops up searching for windows installs it shows a single Windows 7 install under the E: drive with partition size of 0 mb, but im almost certain my Windows is not under drive E:, but it does not find any other Windows installs though.
I am able to look around abit at the hard drive by clicking "load drivers" under the "System Recovery Options" and this is what it shows. 4 hard drives: "system reserved (c drive" 70.1mb free of 99mb "local disc (D drive does not show size or allow me to access it when i click on it "local disk (e drive same, does not show me size or allow me to access it. Boot (x drive 29.1mb free of 31.5mb Then (f drive Repair disc windows 7 64bit. About 8 months ago the computer crashed after my daughter changed some file type assignments and we had to reinstall Windows 7. The reinstall did take, but I do not think we formatted the drives properly with the reinstall and there were several different partitions on the hard drive.
After that install it would show PXE-E61 Media Test Failure, check cable/ PXE-MOF Exiting pxe rom when it would first boot, but it still booted properly and never had any other problems with the reinstall until now. Also windows would never allow me to do a "back up" after the reinstall. When I reinstall windows this time I want to get the partitions in proper order and make sure everything is working properly so im not in this situation without a backup again. I am hoping I have not lost the data on this computer and have been looking at buying a hard drive adapter so I can connect the laptops hard drive to my home pc and hopefully recover the data off the hard drive before reinstalling windows again. Is this an effective way of preserving any data on the hard drive before I reinstall?
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Jan 26, 2012
I have a netbook ASUS Eee PC 1005PXD.After only two days of use, i get a black screen at the beginning: "Reboot and select proper boot device or insert boot media in selected boot device and press a key".Pressing F9 on boot doesn't work and i'm still getting the black screen.F2 is working, then in Boot Settings, i set Removable Device as 1st Boot Device. (and there is no Boot Booster option to disable).Then, using the Windows 7 USB/DVD Download Tool, i create a Windows 7 bootable USB, in order to use the System Recovery.When i get to the System Recovery Options screen, no Operating System appear in the list. (It say to load drivers in this case, but i have no idea which drivers and how to load them).
Then i press next without choosing OS, but pressing Startup Repair after that didn't help.Also using the Command Prompt didn't help (bootrec /fixmbr, bootrec /fixboot, bootrec /scanos, bootrec /rebuildbcd) The two last commands (/scanos and /rebuildbcd) give: "Number of windows installed: 0".Then i decided to reformat and reinstall Windows 7 (my netbook is new):i boot using the Windows 7 bootable USB i created before, then on first screen i press on "Install now".When i get to screen "Which type of installation do you want", i choose Custom.Then i get to screen "Where do you want to install Windows?" but the list is empty, and at the bottom, it is written "No drives were found. Click Load Driver to provide a mass storage driver for installation".
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Oct 19, 2011
Suddenly my Win 7 Home Premium x64 will not boot. The system starts, POSTs then loads the DVD driver, then the screen goes black (not blank but "lit up" black if that makes sense). Then nothing. If I use Hiren's boot cd I can boot up using the "boot from HDD" option fine and Windows operates normally. System restore to a previous configuration made no difference to the original problem. I cannot boot into Safe Mode. F8 just offers me boot order options.
- Running the Windows 7 DVD I find: "No operating system is listed on the Repair Windows option."
- Running Startup Repair finds the following error: "the partition table does not have a valid system partition" which it claims to have repaired, but the error remains and Windows will still not boot.
I followed this advice:
Boot 7 dvd to system recovery options command prompt. Type: Diskpart
list vol (find the vol letter e.g C or partition number e.g. 1 for the system partition )
Sel vol C ( or sel vol 1, obviously use the correct letter or number)
act exi
My system partition was easily identified and listed as healthy so I selected it and made it active. The problem still remains exactly the same. My system is self built just over a year ago, to my knowledge has been running fine, without any hardware issues. I'm prepared to do a clean install if that's what it takes but if there is a way to fix the partition problem without that I'd like to explore it first.
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Feb 18, 2012
"Missing operating system" massage is coming when i start my system and i am not able to start. I think because , i had given "mark partition as active" option for one hard dive (E) in disk management when last time i opened. it did not have any data. i did not know, this will make any problem. Now i am not able to boot windows re installation dvd also. i can only take BIOS settings.
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Feb 17, 2012
"Missing operating system" massage is coming when i start my system. I think because, i had given "mark partition as active" option for one hard dive (E) in disk management when last time i opened. it did not have any data. i did not know, this will make any problem. Now i am not able to boot windows re installation dvd also. i can only take BIOS settings.
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Jun 14, 2012
I am looking to upgrade my desktop from an xp to 7. System builders are very cheap which concerns me. What is the difference from a system builder and the regular version.
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Nov 22, 2012
whenever i boot my pc i starts making sounds for like 15 secs and later asks me t choose my operating. this started wheni removed my battery for like 3 weeks and then inserted it back. am using acer mini.
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Mar 8, 2012
I am having the following system configuration
XPS L401X Base
Genuine Windows(R) 7 Home Premium 64bit (English)
Intel(R) Core(TM) i7-740QM Processor
6GB 1333MHz DDR3 SDRAM (1 x 2GB + 1 x 4GB)
640GB 7200RPM Hard Drive
Lately whenever i try to start my computer it pass the Dell Bios and then directly goes to the screen which states
Repair your system or Start windows normally When i chose repair system , it start downloading windows files and then launch the windows , but hung up at the sky blue login window with only movable cusor . When i choose to start windows normally it gives me BSOD momentarly ( hard to see the message) and then restarts again . i tried with the advanced boot up options like
repair my computer , all safe modes , restore to last good configuration but it does the same and hangs at windows loging sky blue window .I Tried to run the Dell PSA+ Diagnostic and it returns with 2000-0146 error . As per the Dell online solutions for this type of error ,I tried to reinstall the Hard disk but the problem still exist.
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Feb 15, 2013
Living is south FL can be a bitch when the rains come as there often is a ton of accompanying lightening that plays havoc with the electrical system, even though I have surge protectors inside and outside the house. We just had some very heavy rains with lightening and my computer shut down several times, but I could restart it each time...except for the last time when Windows wouldn't startup. At that point, Start Up Repair came into play. Although I routinely backup on an external drive, of course I never did it this month-DUH!Results from SUR were error free (error code=0x0) on all the parameters tested, however there were the following error codes reported:"Unspecified change to the system configuration might have caused the problem." Failed: 0x1fRepair Action: System FilesFailed: x490There were more options to select for a recovery task, but I didn't try them as they didn't seem to be as salient as the two above.
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Jan 20, 2012
I was just wondering is there anything within the fabric of your p.c. (the p.c. equivalent of a clothes label) which specifically states its operating system.I have Windows and Windows Office 2007, but as I said, is there anything that clearly stipulates on my hard-drive which operating system I am using.
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May 8, 2011
The other day I was trying to figure out what coral paintshop pro meant by security key, so I googled it. Something popped up and asked me if I wanted to download, and I wanted to say no, but my laptop's mouse is too sensitive at times, so I accidentally clicked yes. My computer automatically shut down right after that. Every time I turn it on now, it goes straight into System Repair and it doesn't work, it says it cannot repair. I've tried System Restore, but since that doesn't get rid of the documents that have been downloaded, it isn't helping either. My computer won't even let me enter any form of Safe Mode, it just goes straight back to System Repair.
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Nov 9, 2011
I tried to restore my laptop to factory default today and i must have clicked the wrong option because it deleted my Hard Disk. now when i try to start it it says Operating system not found. Is there any way i can fix this? Oh and i have Windows 7 Starter edition, and its a Toshiba notebook laptop
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Dec 11, 2011
This morning my computer, Sony Vaio, was working perfectly. I turned it off and after a couple of hours put it back on, to get to my surprise the following message " OPERATING SYSTEM NOT FOUND".Is it possible to recover my information still?
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Jan 22, 2012
My computer was on this evening, all of a sudden it went off saying no operating system found. What can I do to fix this?
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Aug 29, 2012
i have a dell lattitude d620. I received an error message bootmgr is compressed and i do not have an installation disk.
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Sep 23, 2012
the boot manager was missing for my dell inspiron n4030 so i put the windows 7 repair disk in but when i start it it doesn't have any operating system listed
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Nov 12, 2012
have got windows 7 ultimate version of operating system on my system, . but i also want to install windows xp in it for some reasons related to my education. can i install an other operating system along with the existing one, such that at every start up i could select the required os to be functioned
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Nov 23, 2012
Basically I loaded up my Sony Vaio PCG-71811M laptop and it just has a black screen with 'operating system not found) I clicked F2 for the utility help to see what it said about the HDD. It doesn't say 'HDD not found, all it says is '0GB'. Really worried because all my university work is on there
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Feb 20, 2011
I dropped my acer extensa 5235 from 1.5ft it landed flat. But now when i turn it on it says "operating system not found". Ive been searching everywhere for a solution but have not one. I do not have my windows 7 install disk as it was already pre-installed but i do have the windows 7 iso on a usb-stick. But when i go to install from the usb and choose custom install it starts to "Copy Window Files" but stays at 0% then an error comes up and says "Windows Setup could not reinitialize the deployment engine. To install Windows, restart the installation." ive tried to restart the installation but always comes up with same error?
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