I've been working with a moderator in the Malware removal forum, and it has been concluded that I have some form of malware on the computer that has forced my hand; my only option is to perform a clean reinstall of Windows 7.
However, I cannot boot from the disc or repair the computer using the disc. It loads the necessary files and (after hours of loading time), all I get is a black screen and movable cursor. Upon informing the moderator of this, he advised that I post a new topic in this forum.
After searching for advice online for this topic, I tried changing the advanced visual settings to "let Windows choose what is best"; that changed nothing. At one point, week before last, I was given the option to hit F8 and get into the advanced options involved around the installation disc, as I do every time I boot the computer and get the BIOS screen to choose my OS. (This is a second hand laptop that came with Vista, but by the time I got it, the computer would blue screen when Vista was selected. Ergo the Windows 7 installation.) I have not been given the opportunity to hit F8 when telling the computer to boot from disc since that occasion.
This is a Gateway M-Series, SA6.
Further information pertaining to the computer available upon request.
Edited by Clytemnestra, 14 June 2014 - 06:34 PM.