Install Steam
login
|
language
简体中文 (Simplified Chinese)
繁體中文 (Traditional Chinese)
日本語 (Japanese)
한국어 (Korean)
ไทย (Thai)
Български (Bulgarian)
Čeština (Czech)
Dansk (Danish)
Deutsch (German)
Español - España (Spanish - Spain)
Español - Latinoamérica (Spanish - Latin America)
Ελληνικά (Greek)
Français (French)
Italiano (Italian)
Bahasa Indonesia (Indonesian)
Magyar (Hungarian)
Nederlands (Dutch)
Norsk (Norwegian)
Polski (Polish)
Português (Portuguese - Portugal)
Português - Brasil (Portuguese - Brazil)
Română (Romanian)
Русский (Russian)
Suomi (Finnish)
Svenska (Swedish)
Türkçe (Turkish)
Tiếng Việt (Vietnamese)
Українська (Ukrainian)
Report a translation problem
Steam Support > How to remove and refresh your Steam files [/quote]
Sounds like the computer needs help...
It never attempts to launch the game, it always cycles back to validating registration.
Just downloaded and tried to run BioShock2, worked with no problem, probably because is already had the certificate as it was part of the half-life bundle.
I think the bug might have to do with how it is interacting with the certificate server.
Refresh your Steam files again but this time when you start steam for the first time, right click the steam.exe and "Run as Administrator". Test again. If it works, shut down steam, restart normally and test again.
I tend to exclude my whole Steam Folder(s) from both real-time scanning and my firewall...