
Hi Dielak,
Welcome to PCHF. We have a wonderful group here, and if it is possible, I am sure that we can help you.
First off all however, I need to know if the downloaded games are from a p2p sharing site. If so, they are not legal copies, and that may be why you cannot read them, it isn't that they are in Korean, it is a security code being triggered.
Also, what do you mean that you do not have a "Service Pak CD"? If your copy of your OS is legal, you should simply be able to do the updates through Microsoft. It is extrememly important in fact, that you keep your PC updated at all times to avoid malware taking advantage of any vulnerabilities.
Looking forward to your reply,
TTFN
LGTW