>I want to know how to get into the system registry manually through command prompt only mode, in order to go back to the previous day's registry.
The "manual" way to edit the registry is with the program regedit.exe. Just press "Run" (Windows-R), and type regedit.
Careful! Undue changes can render your system unstable.
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)