Unable to scan

[morganlefay]

After the said "repair"...did you get all your service packs and updates....

because file\dll versions may be the issue.....

As mentioned...sometimes the fastest...and most efficiant way to fix is FNR ( I like that )...or format and reinstall

MLF

[brokencrow]

Yeah, morganlefay, "FNR" is some "Dell rollout" vernacular.

[foxyloxley]

windows update requires BITS to be running

start > run [services.msc] > Background Intelligent Transfer Service - double click, and set it to run automatically

as for the AV :
do you have another version around ?
even an 'old' norton 2002 ?

try and load / run that
it COULD be baddies that stop you running
it could be op/error
it could be bad luck