I guarantee I will not be using avast after this. I installed avast! and when it was done I let it do a full computer scan, following that it restarted the computer and ran another scan. It brought up a file which I told it to ignore, knowing it was a system file.
And ever since then, I’ve only been able to use Safe Mode.
I then deleted just about every file that avast! put on my computer, so I’ve f**ked it up. I even used msconfig to try to stop avast from starting on my computer.
I’m not really sure what version, I believe it was the latest free version. I use Windows Vista business, I cannot remember what the file was, but I ignored it.
I’m not sure how anyone could help you (whether we, avast users, or some avast developer).
I mean, no exact OS version (x32/64, SP, fully updated?); we don’t know which file was identified by avast (even if ignored, the exact file and the exact malware should give us at least “some” information). Then you say you deleted avast files. Which files? Did you uninstall avast or what? Did you run the removal utility for avast or what?
Then you mentioned Safe Mode “only”, but no error messages. Have you tried to boot into Normal Mode and how? What is being displayed during the boot process that you fall into Windows Safe Mode? What procedures have you already tried?
Have you tried scandisk, so to test filesystem errors? Additional security tools currently installed or that were installed before? Which antivirus you used before avast? Have you uninstalled it before installing avast? Have you tried running the removal utility for your previous antivirus so to remove its remnants before installing avast?