perfhost.exe is a DLL file which is responsible for component x86 Performance Counter Host in Windows systems like Windows 7 Professional Edition 64-bit. It was created on 7/13/2009 4:11:02 PM, the size is 20992 bytes and its version is 6.1.7600.16385.
perfhost.exe can be infected by virus TrojanDownloader:Win32/Agent.IM which spreads through social network Flickr to download and install malware Final Sync on the affected machines.
Once infected, the file path of perfhost.exe will be re-set as:
C:\WINDOWS\System32\
And the software like PC game Midnight Club II, Web browser Opera Mini 6.1.25570 or antivirus ZoneAlarm Extreme Security can't start up, along with error message:
perfhost.exe is missing or was not found.
When you restart your computer, you would receive perfhost.exe blue screen of death (BSOD), along with stop error code:
0X8809454
perfhost.exe error can be easily fixed by perfhost.exe file repair tool Windows Error Fixer:
1. Download, install and run Windows Error Fixer
2. Click Start Scan to check perfhost.exe errors
3. Click Fix ALL to repair perfhost.exe problem
Windows Error Fixer allows its users to download perfhost.exe for free by taking the following steps:
1. Download, install and run Windows Error Fixer
2. Click Start Scan to check perfhost.exe file
3. Free download perfhost.exe from the open web page
See all posts about this file error:
Trying to update to W10. Windows update gets suck. Now svchost.exe (netsvcs) uses 40%+ CPU, slows laptop
Hi, I tried to update to Windows 10, then windows update got stuck. Now my computer is running very hot. uses 40%+ CPU and 104% Max Frequency. Please help. This is the Hijackthis log -- End of file - 28641 bytes
Hello, Thank you for your question. Regarding current information, please use media creation tool to download the ISO and perform the upgrade: Installing Windows 10 using the media creation tool http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install For more information, check this article: http://answers.microsoft.com/en-us/insider/wiki/insider_wintp-insider_install/how-to-a-list-of-things-to-do-if-windows-10-setup/eba3c864-d9fe-4f8e-9468-81b1f89473ed How to: upgrade from previous versions of Windows using Windows 10 ISO file http://answers.microsoft.com/en-us/insider/wiki/insider_wintp-insider_install/how-to-upgrade-from-previous-versions-of-windows/31722b30-1da9-42bb-b331-0edc4649bf43 If there are any questions regarding this issue, please be free to let me know.
Potential trojan (fjhdyfhsn.bat) infection?
Hi: My sister may have picked up a trojan on her computer (fjhdyfhsn.bat) and I'm looking for some help to determine if it's still onboard. It created a desktop icon when it installed, and she unwittingly opened it. According to her, upon opening of the file the computer "went nuts"; from what I could glean from her description, a window popped up and registry values careened across it. I immediately had her scan her computer and then attempt to restore it to an earlier timepoint just in case it was a basic trojan/virus. I was able to look at the system myself the other evening, but cannot tell if it is still infected or not and am looking for additional help in doing so. I scanned the computer with Defender, Malwarebytes and Spybot (all installed previous to the infection), but none of the programs detected anything amiss. When connected to the internet there are no redirects to any unusual sites, but when I went to the homepage of a secured banking site I saw the Defender icon turn from green to orange and indicate that the computer was potentially unprotected. I'm not that familiar with the intracacies of Vista (which is her OS), but I know that Defender doesn't exhibit the same error activity with either XP or Windows 7, which makes me suspicious that her computer has some hidden infection still associated. Shown below are the Malwarebytes anti-malware scan (which detected nothing) and a DDS/GMER log. I personally don't see anything amiss in the logs, but I also am not a computer expert. 2009-02-20 20:35:12 8192 --sha-w- c:\windows\users\default\NTUSER.DAT ============= FINISH: 18:52:57.28 ===============
To start resolve this , please restart infected system and press F8 key repeatedly and then chose Safemode with Networking If you are Microsoft Security Essentials installed then update it and run full system scan in safemode and remove threats and if problem not resolved contact support: https://support.microsoftsecurityessentials.com/ and chose: I thing my computer is infected If you are NOT using Microsoft Security Essentials in infected PC , then restart in Safemode with Networking and login to: http://onecare.live.com/site/en-us/default.htm And run full system scan and remove threats, if still same problem contact support: https://consumersecuritysupport.microsoft.com/default.aspx?productkey=pcsafetymalware&faq=1&task=diagnostics&st=1&wfxredirect=1
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