English interface lanaguage instead of Russian

Dear all
My netbook was shipped with a Russian (or Ukrainian) interface language in Windows 7. I would much like to switch it to English. I was looking for MUI files (I think), but could find for just about any language but English. On a forum I found a link to this tool [1] which was supposed to achieve just this, but failed.

Where should I look for language files that would allow me to have the Win 7 interface in English? THank you

[1] windows6.1-kb972813-x64-en-us_483a3e51038f1a369bc5b5cdf5fc32df3ea4ad27.exe

Thanks. I've already changed these settings, but that's not quite it.

What I need is to have all menus, interface, help, messages, etc. in English. For example, half my control panel is in Russian, as all my systray notifications, Windows Update, etc, etc. Any ideas how to change those?

Prof Kerfuffle said:

Format Regional Language - Change

Read that, hope it helps :)

No, it won't. This is only about changing dates, times, currency, and numbers and measurements.
To change the Windows language you have to have Win7 Professional/Ultimate (not sure about the exact name, but I'm certain this is the most expensive version).

And if I don't have any of these expensive versions, what would my options be?

Get Home (or Home Premium) in English. Or learn Russian, unless it's Ukrainian.
Only some of these suggestions are serious....

OMG.... If you don't have Win 7 Professional/Ultimate the 'change language' button simply isn't there.