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Kushal Khare
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WinLogon.exe application errors are a common occurrence for many users of Microsoft Operating Systems such as Windows XP, Windows Vista or Windows 7. These application errors can happen for a number of reasons, usually as a result of virus, trojan or other kind of malware infection or system file damage due to faulty hardware, especially RAM or HDD. Winlogon.exe is a crucial system component that handles the login and logout procedures so such errors can completely disrupt the stability of your PC!
Symptoms of Winlogon EXE Error
You are getting a "winlogon.exe has encountered a problem and needs to close" or a "The instruction at (location) referenced memory at (location). The memory could not be read/written" error message, most likely during the operating system startup. The computer crashes or restarts automatically after that. Don't worry, there is hope yet.
How to Fix Winlogon EXE Error
1) The easiest and fastest way to fix Winlogon.exe errors is to use the System File Checker which is integrated in all modern versions of Windows. To do that, press Start > Run and enter "SFC.EXE /SCANNOW" (no quotes) and press Enter. You may need to run it as administrator in Vista. You might also need to insert a Windows CD so the SFC program could copy over the files that need replacing (if your system32dllchache folder doesn't already contain them all).
Note that while this may as well fix the Winlogon.exe error, the cause of it (such as virus or other malware) will still stay in your system. System File Checker does not remove viruses!
2) Restart your computer and press F8 on load to enter Safe Mode. This starts your OS with only the barebone services and no unneeded stuff. After booting Windows in Safe Mode, use an antivirus scanner to thoroughly scan your computer. Use an antispyware scanner for a good measure as well.
3) In case the above steps fail, you can always do a Repair routine for your Windows installation. To do that insert your Windows CD and restart your computer (make sure CD-ROM or DVD-ROM is set as the first boot device in your BIOS). Press Enter when prompted to enter the setup. Press F8 to accept the terms. Once inside, use the keyboard keys to navigate to your existing installation and press "R".
Note that this should be your last resort as Windows Repair will overwrite your registry, causing most installed programs to cease working!
Remember that keeping your PC secure by doing frequent updates and always running an antivirus monitor and a firewall at all times will minimize the chance of Winlogon.exe application errors occurring in the future. Research all software before installing it and don't trust pirated copies.
Symptoms of Winlogon EXE Error
You are getting a "winlogon.exe has encountered a problem and needs to close" or a "The instruction at (location) referenced memory at (location). The memory could not be read/written" error message, most likely during the operating system startup. The computer crashes or restarts automatically after that. Don't worry, there is hope yet.
How to Fix Winlogon EXE Error
1) The easiest and fastest way to fix Winlogon.exe errors is to use the System File Checker which is integrated in all modern versions of Windows. To do that, press Start > Run and enter "SFC.EXE /SCANNOW" (no quotes) and press Enter. You may need to run it as administrator in Vista. You might also need to insert a Windows CD so the SFC program could copy over the files that need replacing (if your system32dllchache folder doesn't already contain them all).
Note that while this may as well fix the Winlogon.exe error, the cause of it (such as virus or other malware) will still stay in your system. System File Checker does not remove viruses!
2) Restart your computer and press F8 on load to enter Safe Mode. This starts your OS with only the barebone services and no unneeded stuff. After booting Windows in Safe Mode, use an antivirus scanner to thoroughly scan your computer. Use an antispyware scanner for a good measure as well.
3) In case the above steps fail, you can always do a Repair routine for your Windows installation. To do that insert your Windows CD and restart your computer (make sure CD-ROM or DVD-ROM is set as the first boot device in your BIOS). Press Enter when prompted to enter the setup. Press F8 to accept the terms. Once inside, use the keyboard keys to navigate to your existing installation and press "R".
Note that this should be your last resort as Windows Repair will overwrite your registry, causing most installed programs to cease working!
Remember that keeping your PC secure by doing frequent updates and always running an antivirus monitor and a firewall at all times will minimize the chance of Winlogon.exe application errors occurring in the future. Research all software before installing it and don't trust pirated copies.
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