Found it! :)
This may be the solution, I renamed my file and could not access system properties from right clicking my computer, then I renamed it back and I could access again.
So this is what I want you to do:
- go to my skydrive and download the usp10.dll file:
https://skydrive.live.com/?cid=D7389B68B3A275AD
- save it to your desktop
- copy to the system32 folder and to the system32/dll cache folder.
- if asked to overwrite or replace say yes.
- now try to access system properties by right clicking my computer.
let me know if this works.