Bad Memory Dimms Or Virus?
Nov 14, 2011
i built a sandy bridge computer 5 months ago and it worked out great. however today (more specifically this night), i am getting a werfault error when i try to run my calculator (calc.exe). bare with me because this is off the top of my head. the error says something like cannot find reference in *memory address* then gives me another error saying that calc.exe couldnt start correctly.
my first initial thought is that i should run memtest and what not. but i wanted to try to do a system restore first to see if it clears up anything. however, i am prevented from restoring my computer. i would run it and select a date and confirm the restart but then it comes back with system restore has failed/errored. so i am thinking it could be a virus that deleted something important and prevented me from restoring my computer.not sure if these things indicate something else, but i have also encountered "video driver stopped responding and has recovered". in addition, my task bar has been changing from windows 7 theme to a windows 98 type bar and back.
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Aug 6, 2012
I have four identical 2GB sticks of OCZ Platinum DDR2-1066 DRAM (confirmed via various apps) in my rig. But BIOS refuses to run them at anything above 800MHz (Dual Channel 400MHz x 2.) At startup, Bios reports my memory is "DDR2-800".Originally, I was running only two 2GB sticks @ 1066, but after adding two more sticks of identical memory, BIOS's "Auto" settings downshifted to DDR2-800. I have tried setting the BIOS values by hand, increasing Dram voltage to 2.1v, bumping the mem-clock speed to 533, etc and so on. The result is always the same: an unstable system that crashes within minutes.It doesn't matter WHICH two sticks I use, as long as I'm only using two sticks of memory, I can run @ 1066. But never with all four installed, and I have no idea why.When I run "MemSet 3.5", it shows two of my DIMMS running @ "127ns" and two running @ "75ns". Setting all four the same (both 75ns or 127ns) causes Windows to crash. [code]
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Dec 7, 2011
Amd Phenom II x4 B55 BE, 4gb ram, 2 1tb hdd, 1 250gb external, win7 prof. 64-bit, running kaspersky now. Was using avast prior to problem. Ok to the problem: Unusual or perhaps just new memory usage being high (cpu usage just fine)Direct cause: svchost.exe (system, pid 888) to be exact..Possible Indirect Cause: Virus (most notably the fakeAV trojan)Ok, so i got the fakeAV trojan last night late. I have i believe cleaned it completely, still running a few last scans to check, then rerunning a few in safe mode, but so far everything has come back clean lately. (at least each program once clean, usually multiple).So what this virus does is install a fake av pop up, which of course didn't click and a program called arc.exe (which runs in task manager as microsoft 8 direct blah blah bull) and downloads trojans. So I manually deleted (end process tree, file location, delete, it was in a temp folder) the arc.exe (which was the fake anti-virus pop up blocking me from accessing anything on my computer), but it damaged the registry and I could no longer execute any .exe files, open any programs, or install anything. I did the manual delete etc etc in safe mode with networking.
So out of necessity I restored the computer to a week ago to fix the registry/file access issue to be able to get av software etc etc.(I also deleted all the temp folders, prefetch (it had a lot of download instances of the trojan for the arc.exe file) and a few spot files i knew were bad (i keep close tabs on what I've put on my computer when, and using search modified and looking at date created, deleted a few folders and such that were no good).
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Jan 21, 2013
how do I check My labtop for virus and virus protection
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Aug 12, 2011
how to convert a shared video memory into dedicated video memory and system video memory? me and my friend have the same specs computers but the same game runs slow in my computer but it runs smoothly in his computer?
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Oct 6, 2012
i am having a problem with my memory getting tied up / used up and not being able to access it again until i reboot.
machine: dell xps studio 8100
os: win 7,
processor: i7 2.8
ram: 16gb (max it will take)
video: ati radeon 5700 (running 3 monitors)
versions: as far as i know i am running current versions of everything, including video drivers, flash, chrome, etc. (i've tried running chrome with both the build in version of flash and the system version -haven't seen a difference)
browser: i nearly exclusively run chrome / canary with auto-updates so am at the latest builds.what seems to cause me to use up / run out of memory is after i play videos (Internet, netflix, etc.), the memory seems to get used, but is not returned to the system, even if the browser is closed and re-opened.right now for example things are working fine; i rebooted my system a couple hours ago (but have not played any videos). i have adobe lightroom running, picasa, chrome and canary (currently 4 web browser windows open with 52 tabs open). task manager currently shows me using 8.20gb of ram, that seems pretty reasonable to me.
normally my system will keep running properly (if a program is closed, memory is freed up) right up until i start to play any videos (Internet, netflix, etc.) then it will start using up more memory. (of course i expect it to use more memory during playback) however, even if i restart the browser, the memory does not get freed back up. for example, just prior to the reboot, with everything closed, i was using right around 8gb of ram. once i rebooted, i was using 1.something gb of ram prior to opening any programs.however, once i start playing some videos, i never seem to be able to get my ram freed back up again unless i reboot the whole system. this is not just a problem with how much memory the system shows as being available, i frequently actually run out of memory. (task manager will show me as using around 15gb and then everything starts swapping out like crazy).
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Jun 1, 2009
I find that if I run chkdsk and watch the memory usage in task manager it jumps by about 50MB every 2 seconds or so until it either finishes or hits around 3.2GB at which point my physical memory shows 99% used (I'm running 4GB), and the system of course slows to a crawl.f you just run a quick chkdsk on your boot drive you may not notice it, but try running something longer like chkdsk /r on a flash drive or chkdsk /f on a bigger internal drive (but not your OS drive as this would require a reboot) and watch the memory usage climb. I have duplicated this on both systems I have running Windows 7. My XP machine (checking the same USB flash drive) uses a much more normal amount of memory for chkdsk (20 - 30 MB).
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May 22, 2010
Memory Usage Goes Up Gradually (Memory Leak)When I starting the Windows (in the first few hours) everything is normal But after 1 day or 2 (sooner or later) the amount of available memory gradually goes down and the physical memory usage increasing. This increasing, continues until the memory usage reaches near the 88% and at that point , there isn't any memory available to operate any software . Also when memory reaches that point, I can't access any drive in the HDD; because everytime I want to open any folder, the following error appears :c: is not accessible.Insufficient system resources exist to complete the requested service At this point, I even can't shutdown or restart Windows normally; I must restart windows manually by pressing the restart button.after restart, everything goes to normal again; but this problem appears again and again ...
my system :
------------------------
OS : Windows 7 x86
Cpu : Intel P4 3.0GH
Vga : nVidia 6600
MB : Gigabyte GA-8I915G Duo
PSU : Corsair 750W
RAM : 2GB DDR-400 Transcend
(I have these memories for 2 years)
Physical Memory: 2000 mb
Paging File: 2000 mb
Virtual Memory: 6000 mb
0- using some optimizing and freeing softwares like (Memory Booster Gold - RAM Saver Pro - CleanMem)
1- Scanning my computer with antivirus and antispywares
2- Changing antivirus software
3- Updating windows with all updates available via Windows Update
4- Updating drivers of all hardwares
5- Downloading and installing the following hotfixes that are related to memory leak : The memory of the nonpaged pool may leak when you enable IPsec on a computer that is running Windows Server 2008 R2 or Windows 7 A memory leak issue occurs in the Windows Management Instrumentation service on a computer that is running Windows Server 2008 R2 or Windows 7 FIX: A memory leak may occur when you use the Microsoft ActiveX Data Objects Library in Windows Vista, in Windows 7, in Windows Server 2008, or in Windows Server 2008 R2 A memory leak occurs when an ADO Recordset object calls the UpdateBatch method A nonpaged pool memory leak occurs when you use a WFP callout driver in Windows Vista, Windows 7, Windows Server 2008, or in Windows Server 2008 R2
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Nov 5, 2011
I just built a new computer and started with 8GB of memory. A few weeks down the line I purchased another set of the same memory because it was on such a good deal and had great reviews (newegg). It also was working well for me, so I figured maybe more could be better.
I haven't noticed any decrease/increase in system performance except Alt-Tabbing has recently got slower. Also, Windows 7 was sitting tight on 1.3gb to 2gb of memory usage prior to the extra 8 (now 16) being added. Even when gaming, it went up to like 3gb. Now that I've added the extra it's going up to 4.5gb or better. Also, is it possible to speed up my alt-tabbing? It seems to have a good 3-4 second pause in it instead of being immediate like it was.
Computer specs:
Windows 7 HP 64-bit
gSkill 16gb 1866 memory (BIOS shows it at 1866, too)
Intel i5-2500k Sandy Bridge (OC'd 4.6 with factory Overclock presets)
ASRock z68 Extreme4 mobo
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Feb 28, 2012
I recently bought 2x1GB Ram Sticks for a Dell DimensionE510It has a Pentium4 2.80Gh Processorand factory 1 GB RAMIt's currently running Windows 7 x64hen I put the new RAM sticks in the system recognizes the new memory says it has 3.0 GB of ram and runs until I start actually using to new memory, as in start running more programs simultaneously and it crashes and I get two BSOD*. As far as I know the sticks match the motherboard, as in that's what I was told.*"Memory Management" and "PFN List Corrupt"As far as I understand it is a driver issue, but I honestly am not sure.
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Oct 28, 2012
To start, I have Windows 7, on Sony Vaio laptop. I have been working on the issues with the malware removal team, but now machine looks clean, I am still having issues. When starting the computer and going to the task manager, I can watch explorer.exe start at about 18K memory usage and then grow constantly until it is running with almost all of the computer's physical memory after about seven min. I cannot get the context menu to show up after a few min by right clicking on anything. I had been experiencing "freezing" while playing Eden Eternal (an online role playing game) before that, which made me consider malware and seek help here at BleepingComputer. The freezing has ended, last time I played on that machine at least, but now there seems to be some issue with the explorer.exe taking all of the memory. I haven't been using the machine since I don't trust that there's not something running in the background that shouldn't be. In resource monitor there were "connections" that had "-" for both the name and the PID, but I don't know if that was the malware of if that's normal somehow? Issue with explorer.exe seems to be limited to only one user account, and not the other one. That is to say that if I log on one of the other accounts explorer.exe behaves normally, as far as memory usage.
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Sep 20, 2011
I have windows 7 64 bit and also running a ssd. Just a few days ago I've started to have an issue where after my computer is running for a couple hours all processes continually increase the amount of memory they are using until I get an out of memory error. Here is a pic of it around 75%. I have 8 gigs of ram (kingston) that before this never went above 4gigs of use, so not sure what is causing this suddenly.
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Nov 5, 2011
my camara says memory card is protected (reset switch on memory card) how do you do this the camara wont take photos untill this is dun
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May 9, 2011
I've had the ramnit virus on my computer. Long story short, i had to nuke my laptop to get rid of it. My problem is that the virus is on the USB stick. So is there anyway i can format the USB stick without the virus jumping onto my laptop?
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Aug 2, 2010
is it a virus? should i delete it?
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Dec 9, 2010
how can I block virus pop ups?
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Nov 19, 2011
I am having trouble downloading from web pages. Everything that I try to download I can't. A window pops up in the bottom of my computer and says that the download contained a virus and was deleted. I am an online student and need some guidance. This has been going on for two weeks now. I don not have an anti virus anymore because I did a system restore and it wiped out my antivirus protection, and since everything that I try to download contains a virus and is deleted, I cannot get another anti virus. I even tried using my flash drive
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Feb 17, 2010
Best virus programs for windows 7, Recently ungraded, was using Live Onecare, Can't use from #7
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Feb 15, 2013
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Feb 1, 2012
Win 7 x64, all updates. intel core 2 duo E8800. 8gb ram in 2 pairs. Nvidia 9800GT.2x HDD with lots of free space. ESET antivirus + Outpost firewall Every time I shut down the computer, I get an error like this:The instruction at 0x72f151d3 referenced memory at 0x72f151d3. The memory could not be written.Sometimes they will auto close, others I will have to force the shutdown.The thing that seems interesting is that there's a pattern to the memory addresses.When it's a software exe crashing, it's always 0x7xxx51d3.When it's explorer.exe crashing, it's always 0x7xxx87bc.
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Sep 14, 2011
My os is win 7 ultimate, i try to down load and save or run, and soon as download is complete it say's there is a virus and deletes.Anybody got any ideas what going on.I have two computers same os, doing same thing
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Jul 26, 2012
I was infected by a virus. It makes the shift key get repeatedly pressed over and over. This happened to me before and I solved it by scanning with MalwareBytes and AVG. When I went to scan with MalwareBytes it needed updating, so I let it. Unluckily for me MalwareBytes thought it would be kind and restart the computer without my consent. Now, due to the virus, I can't login to my account to do anything, even in safe mode.
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Aug 15, 2012
I recently downloaded Microsoft Security Essentials and now I think I have some sort of virus. Within minutes of logging onto my computer, a message keeps popping up that there is a critical error and that the computer will restart within one minute. I have tried to do anything I possibly can to get rid of this issue! It does the same thing while booting up in safemode as well. I also tried to restore my computer to a previous date before this occurred, and it still keeps happening. I figured i'd try to restore it to factory settings also, but it does not give me the option while booting up (f11), or on my control panel. I also tried using the TDSSkiller but my computer reboots before the scanning/fixing finishes.
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Jun 6, 2011
I just got some virus that im assuming is either scareware or ransomware that prompted me to buy some windows 7 recovery bs. I managed to remove the virus, i think so at least, with Malewarebytes software but now all my programs are gone.
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Jun 7, 2011
cleaning up this virus to restore my program folders that are showing up as empty.Unfortunately, I ran a temp files cleaner and I no longer have the smtmp folder. Is there a way for me to restore this? There is no way I am going to restore all those shortcuts manually!
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Jun 4, 2012
Ok so today i was clearing some data with the Disk Clean Up, almost right after that my computer became extremely slow and unresponsive, I found that my McAfee Security that came free with the laptop was Turned Off and it wont Turn On again. I have tried Installing AVG, running an Rkill that i downloaded last year and have done a System Restore as far back as possible but still my computer becomes unresponsive and wont open any programs unless i'm in safe mode.
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Feb 13, 2013
I am now struggling with a virus that seems to have imbedded itself in my windows 7 system.I tend not to use it too regularly but the boyfriend does use it to play games in Facebook. I am running a Norton antivirus which has been pretty good up till now. The computer seems to be running fine but my email account has been hijacked and on finding this out I have checked the computer and tried to perform a scan of both the windows system and also my accounts to no avail.The desktop symbols are all in place but none of them are working. I have also tried running a scan in safe mode, once again it would not work. The task manager did not show any action with regards to the antivirus scan that I had requested it to perform.
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Feb 22, 2013
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Oct 25, 2012
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Jul 23, 2011
I removed a virus from my friends e machine net book a week or so ago it was the system tool 2012 virus.it was removed fully and have checked this via AV and malwarebytes etc.but since then the internet always finds wifif points and connects but always says limited connection.
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Jul 18, 2012
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