Well I found out what the problem is....
For some reason Start 10 conflicts with WindowBlinds.
After deciding to play around some more, I did the following steps:
1. I ran the WB purge .bat file.
2. I then ran the Start10 purge .bat file.
3. Restarted my computer.
4. Installed and activated WB.
"What do you know the blur effect came back!"
5. Installed and activated Start10.
After that it went away.
So to be sure that it was Start10 doing this I ran the Start10 purge file and reinstalled it and it happened again.
So yeah for some reason they conflict with each other. I have no idea on how to solve this but at least I know what's causing it.