I installed avast 4 (free) home edition on my laptop. After the installation, the computer will not let me logon. If I log on as administrator or any other user, the computer instantly logs me back off.
Safe mode, safe mode with command prompt, last good known setting etc do not work.
I copied back the original registry files from c:\windows\repair but this did not work.
I have been able to boot with the windows installation cd and go to the recovery console. From there, I deleted the avast files and disabled all the avast services except:
avast! web scanner and
avast! mail scanner
I think that if I can disable the above 3 services whilst in the recovery console, I can start up the computer.
To disable the other services, I used "disable <<service_name>>".
However, the above services are 2 and 3-part names and the regular disable command is not working on them. What commands should I use ?