Had a bsod error0000001a,went to safe mode w/networking, came up for a few secs, then froze, tried again, and froze again-now pc will not power up at all-vista home premium, acer desk top-what can I do?
Can you get to normal safe mode(guessing not).
You can enter the recovery console(google instructions/guide)
Or if you don't need the data or can put the HDD into another machine to save data it may be easiest for you to do a system restore if the windows recovery console doesn't work for you. I know HP/Dell leave a recovery console not sure what acer does.
I'm assuming you mean it won't boot up not that it won't power on. If it won't power up then you have a different problem and hardware failure is a likely cause, which could have been causing blue screens as it failed and now nothing as it's died.