Well, it gets up to the login page.
But, after that, it just doesn't work at all. It gets to the steam login, then after I log in, nothing happens. Everything (steam) disapears, sometimes I find a proccess called steamerrorreport (I forget the exact name) in my task bar.
I've tried deleting clientregistry.blob several times, doesn't help.
You'd get more help by contacting Valve.
Copy your steamapps folder to your desktop, delete steam. Then reinstall steam, and put your steamapps folder back, should work.
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