How to recover my account if I forgot my e-mail address?
1263
How can one link / merge / combine / associate two accounts / users? (Anonymous / unregistered / cookie, or Google / Facebook / registered)
115604
How can I disassociate an account?
35312
I deleted a folder in Ubuntu, how can I recover it?
88115
How to get back a declined Outlook invitation
52887
What do I do if I forgot my Gmail password?
27758
Forgot login credentials, can I look up my account from my username?
65668
changed primary email in google account. how to log in?
115621
Can I request a moderator to re-activate my SO account that has been suspended because of mistake?
38617
How do I reclaim my Clash of Clans account?
48825
How to recover from a forgotten password for MacBook Pro?
39241
Lost my Stack Overflow account when I trashed my e-mail address
82
How do I reset a lost administrative password?
128389
I have no account in ubuntu
108716
Changing my Apple ID's email: address is not available
77610
how to reset a lost admin password?
144763
How to restore permanently deleted records?
5629
How do I logout from a non-registered account?