HijackThis!
Open Hijack This and click on Scan. Check the following entries
(make sure you do not miss any)
O4 - Startup: csrss.lnk = ?
Please remember to close all other windows, including browsers then click Fix checked.
Download
combofix.exe-Save it to your Desktop, we will need this later.
Double click combofix.exe & follow the prompts. When finished, it shall produce a log for you. Post that log in your next reply
Note:
Do not mouseclick combofix's window whilst it's running. That may cause it to stall