Interesting news. I followed your exact instructions regarding the zero key and had different results. Still a blank screen, but the cursor is still-it stopped blinking. I will report back. Checking out your other suggestions and will attempt reboot.
I have an update! The zero reboot method pet your specific instructions dif not work, but somethong else did due to your great know how. I inserted my 2012 AVG disk. I upgraded version just last week, so I hope the old version recognizes the virus. Nevertheless, with CD inserted into drive, I rebooted the machine. Per notation on the Bios screen, which I accessed before, I pushed F12 and the Boot Manager screen appeared offering several options of which I obviously chose CD/DVD drive. AVG Boot Manager screen next offered several options: 1. AVG Rescue CD 2. AVG Rescue CD with Disabled Framebuffer 3. AVG Rescue CD with Resolution Selection 4. Boot grom floppy disk (NOT an option) 5. Boot from hard disk (Can't!) 6. Boot from next device on the BIOS boot sequence 7. Memtest86-Advanced Memory Diagnostic Tool 8. Exit to the syslinux boot prompt. Please kindly advise? Thanks, Mary