when i click my any microsoft office's product then it start geetting installing. it is installed from 4-5 years and was wroking fine. it happened 10 days before. now i cant open my word, excel or any other file. when i try to unsitall it , it says "this product intallation is corrupted, try to install with the CD or DVD". this is when i try to uninstall it. when i install it, it says "you have error while installing it. ". i am strucked. i cant unistall, i cant install it again and i cant use it. what to do ? for the time being, tell me some temporray source where i can edit my word files and do my work properly. thanks.