Installing Windows on Macbook Pro Mid 2010

Hello everyone,

2 years ago i tried installing Windows 7 on my Macbook Pro and after lots of troubles i got it to work. (after 2 months or so)

Because my superdrive is broken my only option was to install it with a bootable usb.

It wasn't easy, but i got it to work. (Had to edit plist inside bootcamp etc.)

Now, two years later, windows was starting to get kinda slow, so i thought it would be a good idea to reinstall Windows, maybe update it.

The idea wasn't as good as i thought it would be, cause Windows was gone..

So i tried to install windows again, with the same solutions i tried 2 years ago. But it didn't work... ( I can't remember what the solution was 2 years ago, cause i tried so many, so i tried them all again this time, but none of them worked.)

Maybe it's cause i updated to a new OS X version and this version won't let me install windows. So i even deleted my OSX and installed the version i got when i bought my MBP. But it didn't work out...

So is there anyone who can help me out?