When I reinstall my Win 7 I installed all new drivers and Blender. Firstly Blender didn't work because new version need Service Pack 1 so after few Win Updates Blender starts to run. So I open Blender and I want to do some objects, but Blender was horrible slow! All Blender, from menu to selecting vertex is slow now. But before, I ran Blender 2.78 on the same Win 7 and same specs without problems. When I install fresh OS it's working so slow. I don't know what my PC is missing.
Win 7 64-bit
i5 - 4440 3.1GHz
GTX 770 2GB RAM
and 2.78 Blender runs still slow...
EDIT I'm using Windows 64-bit, and I have Blender installed in the Program Files folder, which is for 64-bit programs. Blender only works if installed in Program Files(x86) I know I downloaded Blender-2.78-windows64.msi, so I don't see why it's doing this.
My Win is 64-bit so, I install Blender in Program Files folder, but I think what may happend when I try to install it in Program Files (x86) folder and it's working. But I still don't understand why it was doing this problems, I download blender-2.78-windows64.msi for 64-bit system so why? Thanks for your free time :)