Specific instruction needs specific damage or name of pests.

There is no specific instruction for this issue unless we consider "reload the OS" which most folk want to avoid.

Keep writing and use Grif's advice which has you get the tools needed from another PC.
http://forums.cnet.com/7726-6132_102-5098912.html?tag=posts;msg5099421

The most common issues I run into are malware and other things like limited user accounts and folk that set the security setting on everything to HIGH. Not much works on that setting.
Bob