accidentally deleted all system variables

[leela]

hi,
I accidentally deleted all my system variables. And now i was unable to set it back. I also unable to install any new softwares also when i was trying to any software there i was getting a message like " The system could not find the environment option that was entered" can u please tell me how can i get out of this problem without any reinstallation. And my pc is windows7 ultimate.

 

[koolkat77]

try this http://www.sevenforums.com/tutorials/700-system-restore.html