Posted 07 February 2015 - 12:23 PM
This worked for me. .
This problem is most probably a software installation/update related. And if this is what it is then it must be reversed in order to put things right. Talking about restoration to an earlier date.
As windows vista boots, press f8 to bring up the boot menu, and choose safe mode with command prompt. (Other safe mode options may be just as painful as normal windows, but if they are good, then go ahead and use them).
Login with an administrator account and at the command prompt, run explorer.exe. This should show you the desktop after a while. Follow Start ->All Programs->Accesories-> System tools-> System Restore. Choose a restoration point that you are had the best settings, it can the one just before your computer started acting. Go through the steps of the restoration. In the end your system will reboot and you should be good to go.