Just to add to the discussion. It's not just China. Were I live it's quite common to end up with a bootleg software install (and an infection) after getting your computer serviced. The typical "service" is to wipe and reinstall, instead of attempting to fix.
If you buy a new computer on the other hand, you generally get a legal install. It's when you have it serviced where the problem lies. My daughter took her Toshiba laptop in for repairs up in Baguio, when she got it back, original install was gone. In it's place were bootleg copies of Windows XP, Office, Photoshop and others. None of those extras were asked for, nor with the exception of Office, were they initially installed. On top of that it was badly infected with malware. She brought it to me. It was bad, I had to wipe and reinstall. I decided to use Linux, no we have no issues.
