Hello, Yesterday I installed some software which needed to install 2 additional pieces of software to be installed first for it to work. Somewhere during the installing my AV avast went to 50% cpu and it all went slow. I installed everything though and the software worked fine. However, after I restarted my pc, windows XP suddenly said that the configuration of my hardware differed too much from the point of installing windows XP and that I had to reactivate it. I de-installed the software and tried a previous system restore point from the day before but that didn't work. I did notice there that there were also two windows updates installed after the software. Namely: windows XP KB942288-v3 (this?) and: Software updates KB952011 (this?) I started with the 8-step since those are helpfull anyway. The first two logs looked good to me but running the DDS didn't entirely work for me. First try it made my comp freeze at around 2/3. Second try (after a reboot and this time turning off avast) the same thing happened. (waited 3 min or more after it froze) I have no other problems besides suddenly having to reactivate windows within 3 days. On a side note: some time ago I emptied my windows DLL cache. My question is: do you think I should just reactivate windows XP or do you strongly suggest me to go through this malware removal process first? Thanks in advance.