If you want to clear CMOS memory from Windows, which resets BIOS settings to default, you can use CMOS De-Animator utility for that. CMOS De-Animator allow you to invalidate checksum’s of your system’s CMOS memory, resets all settings to default and clears any stored BIOS passwords if any upon reboot.
This utility doesn’t a have graphical user interface. Run the utility, click ‘OK’ for the confirmation message to clear CMOS memory.
CMOS De-Animator is freeware and portable, runs on all Windows operating systems, no administrator privileges required.
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Update: Download link has been removed from this post since too many users reported their anti-viruses found this program as a virus.
December 7, 2014: CMOS De-animator v3 download link (Majorgeeks), this file has been uploaded to VT and the result is: it is clean.
I tried to download the 32-bit version of CMOS De-Animator, but Avira denied access to the file. I got this message:
“Virus or unwanted program ‘DR/Delphi.Gen [dropper]’
detected in file ‘C:De-CMOS.exe.”
@Bruno Casarini
It’ may be false positive, I ran it in my system with latest Updated AVG 9.0 free installed as screenshot suggests, AVG didn’t alert about that.
Please read this
http://www.st-ware.com/page.php?20
I also uploaded file to VirusTotal and 8 out of 42 anti-viruses have shown infection :).
Here is link of VT analysis http://bit.ly/bshVHF
It’s upto you to decide
But does this works on all BIOS like AMI, Award etc ?
Yes it does work on all BIOSes. Altough on some systems, the utility might need to be run under one-time administrator privileges, and then it will work for all users system-wide. Unfortunately this is a driver related issue.