Start menu language changed, how to change back?

If I understand the problem correctly, the Windows stuff switches language from Swedish to English and back again just fine, but the third party apps don't? Is that right?

I tried that now and it didn't help. Note that just some of the menuitems is in English.

The Folders that are standard has changed language but not the menues to the right.

Is there no way to install w7 over the old like Vista or XP and keep my settings and that but get the systemfiles to install again?

You could do a repair install. Repair Install

So there is a way to do that!? Thanks! I'll try that after thw weekend. :)