Admin theme lost

[olavt]

My admin theme for one of my sites got lost when upgrading. How can I reistall or change admin template?

[Rolf]

Which admin theme did you use?

[olavt]

I have only been using default theme. I have not found out how I change admin theme. To my knowledge, I did nothing to change this when upgrading.

[paulbaker]

You don't say which version you upgraded from/to. Did you hit refresh a few times? Sometimes when I upgrade some files are still in browser cache and it needs a hard refresh to clear them out for the new ones. Post your system info.

[Rolf]

Go in the Admin to: My Preferences >> My Account >> User Preferences
and change setting Administration Theme to NCleanGrey or OneEleven

[staartmees]

If you don't have access to the adminsection, you have to change the theme using phpMyAdmin. Normally you can find it in the control panel of your hostingprovider.
Look for _userprefs, set admintheme to NCleanGrey or OneEleven