Accidentally tried to activate a key for a game I already had. Now what?
82743
What happens if I activate a product key on Steam for a game I already own?
64246
I accidentally closed the window for the verfication code
101020
What can I do when I accidentally gave out an overpowered item?
98883
Windows INSERT key anti-functionality accidentally triggers; how to stop it permanently?
5133
How can I recover my MS Office 2011 product key?
53954
Can I register a retail boxed copy of a game with Steam?
155775
Can't activate Windows 10 Pro with license linked to Microsoft account or product key
67867
Reinstalling Windows 8 with the existing product key
65841
Moving games from a steam account to another steam account?
133156
How do I fix my dead keys in Snow Leopard?
119741
Can I play a save from the non-GOTY edition of Red Dead Redemption in the GOTY edition?
39110
I have forgotten my keystore password and I want to install my apk on Google Play. What do I do?
72569
How do I access my SHiFT code golden keys in the Pre-Sequel?
123100
Where do I enter cheats, and what do they do?
129228
What can I do because of 'Duplicate Product Code' on Steam?
152426
I added a registry key, but I cannot find it programmatically
150744
My Developer Account cannot be activated because I used a relative's credit card