So, My computer was Windows 7 Ultimate. I May have booted up my computer and what appeared at the login screen: No background, a button that could help about onscreen keyboard, etc, and a shut down button with another button beside that wasn't working. And I can't see any username in the log-in screen. What shall I do...?
let repairs run and see if this helps
if chkdsk did not run then try again and make sure chkdsk is run
if lots of hard disk errors reported you may have a dying hard disk
personally I like to check hard disk for damage before using chkdsk or emergency disk
Hirens CD (15.2) has several hard disk diagnostics programs for major disk manufacturers and Seagate version works with other makes
The Mini XP has WesternDigital Data life Guard for Windows (which works with most other makes and USB drives)
this sometimes sorts out problems of corrupt filesystem stopping proper Windows start up