System Restore programs missing

I recently used System Restore to, well, restore the Windows 7 Basic theme to my computer (text colour was black on black windows) because when I went to change it, I got the error message "Theme could not be applied. Access is denied."
All worked out well, except that my Microsoft Works program (this I did not install, it came on my computer. Not a trial version.) is gone. It is still listed under Acer (C: )> Program files>Microsoft Works but I cannot run the program. Any of them. Trying to open existing documents prompts a program search.
there are no .exe or application files in any of the "Microsoft Works" program folder. Only "Application extension" files, along with the standard HTML and image/sound files.
I am running Windows 7 Starter
How can I solve this, if possible?

This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.