Help with user permission

[mriato]

I know this is a novice question, help is appreciated. I had a malware problem on my HP pavillion, and I did a HP recovery which removed the virus and I have my computer back!

Problem is, now when I try to open Microsoft Word, it starts to open, so I know it is still in the programs directory, then gives me a message box saying Microsoft Word 'has not been installed for the current user' and to run the setup disc. I see that word is there, how do I fix this (without the setup disc for word)?