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System Won't Boot. ACPI.sys is corrupted
Hello All,
I have a Toshiba laptop running 64-bit Windows 7 which will no longer boot due to system error.
This laptop was running fine until I attempted to download Kaspersky Internet Security.
Kaspersky recognized another Anti-Virus on the laptop, Avast, and required it be removed before installing Kaspersky Internet Security.
I chose to remove Avast, and when the laptop required a reboot, it failed to load into Windows. Windows attempted to fix the problem but could not. Further investigation of the error details stated that acpi.sys was corrupted.
I inserted a Windows 7 installation disc and attempted to fix it via the Repair option, to no avail. I also copied acpi.sys from my desktop onto a flash drive, and copied it from the flash drive onto the laptop. This too failed to fix the problem.
I also attempted to reload Windows 7 from the installation disc, but when I chose 'Upgrade', the system returned with a message "The computer started using the Windows installation disc. Remove the installation disc and restart your computer so that Windows starts normally". I cannot perform the recommended operation because Windows fails to load normally!
I am reluctant to use the 'Custom' install, but I may be required to do so. If I do, I will post those results.
I am suspicious that Avast may have corrupted the acpi.sys driver upon removal.
I had performed this same operation on my desktop without issue. Kaspersky recognized that I was running AVG and required that AVG be removed, which I did via the Kaspersky interface to the AVG. Upon removal, a restart was required, and my desktop system rebooted without issue.
Any help is appreciated.
Last edited by NeedToKnowMore; 26 Mar 2016 at 06:11.