I have had issues with my computer recently, which is an Acer Aspire 5735, with Windows Vista installed on it. I have owned the computer for 3 years since it started to behave strangely in August, beeping and shutting down out of the blue, before getting a blue screen with a system dump message (along these lines). I ran a chkdsk and it seemed that the problem was gone. Then the shutting down started again and I run another chkdsk, it helped, once again. Then three days ago it started to crash before finally shutting down. This is when I run again the chkdsk (which changed the security ids of thousands of files, for one hour or so - message: Replacing invalid security id with default security id for file ####) and, to my surprise, the computer will not boot after that black screen with "microsoft corporation" message at the bottom appears, it will stay in a black screen with a cursor.
I tried to to restart in safe mode, it will not go past the black screen with a cursor. Tried to do system restore, no joy. Tried to do system repair, it says that no errors were found at startup.
I am at a loss on what to do and I am completely stuck as I depend on that pc for pretty much everything.
Could anyone out there kindly help me here? Many thanks in advance!!