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How to fix a PC that won't boot after a virus/malware scan?

How to fix a PC that won't boot after a virus/malware scan?

My Dad's PC will not boot up!

Asked by: Guest | Views: 93
Total answers/comments: 2
Guest [Entry]

It could be that someone took a browse in the BIOS and turned on APCI or somthing. Its to bad you aren't there. Mabe phone him and walk him through doing a bios reset. Just make sure he can follow along lol.
Guest [Entry]

"As it was already said, the reinstall is certainly the most easy and secure thing to do.

However here are some things to try from ubcd4win:

Add teamviewer to it for easy remote control
If the computer reboot after the blinking screen: prevent the automatic crash reboot (for vista & 7, it's simply in the F8 advanced boot menu) to see the error
If a crashdump is generated, use BlueScreenView to analyze the crash dump (.dmp files, located somewhere like C:\Windows\minidump, use Options > Avanced options to select the directory)
chkdsk your system drive
Manually check the quarantined files (virustotal.com & google) and if they are false-positive, restore them.
A deep scan (disable all options to speed the scan) with good antivirus like Kaspersky Antivirus Removal Tool or malwarebytes anti-malware
check the strange startup process, drivers, services, ... with runalyzer or sysinternals autoruns launched by RunScanner, here is a batch file to do it easily:

copy %SystemDrive%\Programs\autoruns\autoruns.exe %Temp%
start %SystemDrive%\Programs\RunScanner\RunScanner.exe /t 0 %Temp%\autoruns.exe"
"As it was already said, the reinstall is certainly the most easy and secure thing to do.

However here are some things to try from ubcd4win:

Add teamviewer to it for easy remote control
If the computer reboot after the blinking screen: prevent the automatic crash reboot (for vista & 7, it's simply in the F8 advanced boot menu) to see the error
If a crashdump is generated, use BlueScreenView to analyze the crash dump (.dmp files, located somewhere like C:\Windows\minidump, use Options > Avanced options to select the directory)
chkdsk your system drive
Manually check the quarantined files (virustotal.com & google) and if they are false-positive, restore them.
A deep scan (disable all options to speed the scan) with good antivirus like Kaspersky Antivirus Removal Tool or malwarebytes anti-malware
check the strange startup process, drivers, services, ... with runalyzer or sysinternals autoruns launched by RunScanner, here is a batch file to do it easily:

copy %SystemDrive%\Programs\autoruns\autoruns.exe %Temp%
start %SystemDrive%\Programs\RunScanner\RunScanner.exe /t 0 %Temp%\autoruns.exe"