How to stop Tortoise SVN from asking for username and password

The easiest way to do this is to right click in Windows Explorer, select Tortoise > Settings.

Then in the Settings window select the Network tab. Then in the SSH client field, set use the Tortoise SSH client, TortoisePlink, to use your username and password. For example:

D:TortoiseSVNbinTortoisePlink.exe -l username -pw password

Hope this helps