Păi e mult de explicat.
Oricum încearcă metoda asta http://www.pcadvisor.co.uk/......e-3589464/
sau http://www.tomshardware.co.uk/forum/36518-63-msvcr100-missing-computer
http://www.faqforge.com/......n-windows/
https://www.youtube.com/watch?v=UXDwM8IVIc0