Hello, I am somewhat ignorant when it comes to anything beyond computer basics.
I have a Lenovo H420 Desktop, with Windows 7 home version - 64 bit, 1 Tb HD, 8 GB Ram.
Last week I found out from my ISP that my e-mail account had been hacked and was being used to send out spam e-mails. I ran my AVG security program and it found nothing. I restarted my computer and now all I get is a blank black screen with an active curser. The numlock and caplock keys still work, I have left the computer on overnight in case it was a slow start up but that did nothing.
I have tried using my recover disks that came with my computer ...they run through the recovery but it changes nothing. I tried running malwarebytes from the dvd drive...it found nothing.
I have all my important data backed up to an external storage drive so at this point I think I want to re-format the HD and reinstall Windows 7.
I have no idea how to do that. Windows 7 came installed on my computer and I cannot find a product key anywhere on the tower or with the paperwork that came with the computer.
What would be my best avenue to format and re-install windows under these circumstances? Or is there a chance that I could fix the problem with out formatting?
I am able to bring up the command prompt in safe mode.
Thank you very much to anyone who has the time and expertise to help...it would be greatly appreciated.