i have vista home 32 version. it works for a year or two. last week it auto shut down. when i started it ask the product key. I typed it in not working and asked the Microsoft support, it is not working and he used his own product key it wasn't work. The representative transfer to a pay service and ask $160 to fix it. Is there any one know how to solve the problem? Thanks for your help.
1. Windows would not ask, on startup, for the key. It would tell that is it 'not genuine'.
2. A MS rep would not use his own key to re-activate.
3. MS would not charge $160 for reactivating a valid key
Methinks you have a virus and you talked to someone 'not Microsoft'.
Devirus your machine, and/or call actual Microsoft.