I have an HP desktop PC model # a6220n with Windows Vista Home Premium, Service Pack 2, Intel Core 2 Duo Processor, and 2 GB RAM.
My Norton Antivirus had expired a few months ago and just a few days ago I got to renewing but this time I bought Norton Internet Security on Amazon.com for 3 PCs. When I installed Norton Internet Security it prompted me to restart to complete the installation so I did. When it finished installing, it showed it was working on some threats on the bottom right taskbar and when it finished the window of threats detected showed about 7-8 viruses and they all had to be removed manually, except for one, the most recent of that day (yesterday). The viruses date back to April of this year but the one that seemed like Norton would remove showed a restart was required to complete the removal of that threat. After I clicked restart the PC seems to load but I never get to the user sign in screen and instead there's a black screen with just the cursor. I turned off the PC by holding down the power button and then restarted it. This time a black screen showing the message "Windows did not shut down successfully. If this was due to the system not responding, or if the system was shut down to protect data, you might be able to recover by choosing one of the Safe Mode configurations from the menu below : Safe Mode, Safe Mode with Networking, Safe Mode with Command Prompt, or Start Windows Normally.
I tried each of those options and the same thing happens: I get to the black screen with the cursor. I'm wondering if I should just reformat to factory settings or if there is a way to recover the PC. Any help is appreciated. Thank you.