Can't install any anti virus software

Hi, I'm having problems installing an antivirus software. I'm running on windows 7 and I'm trying to install AVG Antivirus Free version. This is the error message:

Local machine: installation failed
Installation:
Error: Action failed for file sc.dat: creating file....
Access is denied.
Rollback:
Error: Action failed for file sc.dat: removing file....
Access is denied. %PATH% = "C:\Program Files\AVG\AVG9\sc.dat"
Access is denied.


Tried solving the problem in malware removal forums but the problem wasn't solved and was told to create a fresh thread here in software.

also, I don't know if this is related. I'm trying to reformat my PC but it can't read any windows CD. I tried different versions of windows but still it can't boot.

I tried putting some discs that is not a windows cd and the DVD Rom can read it so I assume it's not the DVD Rom that is busted.

I assumed that something is preventing the system to read the boot file.

This is just my last resort. wiping my system out.. but if there is a work around pls help me.

thanks.

 

done all that and still avg won't install

Local machine: installation failed
Installation:
Error: Action failed for file sc.dat: creating file....
Access is denied.
Rollback:
Error: Action failed for file sc.dat: removing file....
Access is denied. %PATH% = "C:\Program Files\AVG\AVG9\sc.dat"
Access is denied.

that's the error.

 

Have you tried any other AV programs?
Lots of people here use Avira AntiVir.

http://www.majorgeeks.com/Avira_AntiVir_Personal_-_FREE_Antivirus_d955.html

 

installed avira and it worked. thanks a lot!

 

Glad you got some defenses in place.
Congratulations.