If you just hate the Windows 8.1 Start Screen, consider using (formerly Classic Shell) instead of a full transformation pack. It gives you the Windows 7 start menu and taskbar customization without messing with system file icons and Aero glass. It is lighter, safer, and reversible.
Here is how to get it running on your machine. windows 81 to 7 transformation pack
The aggressive, full-screen Start screen vanished. In its place stood the Aero Glass If you just hate the Windows 8
Quick and covers everything in one click. Cons: Can be difficult to uninstall and may occasionally cause system instability since it touches core files. 2. The Modular Approach (Recommended) windows 81 to 7 transformation pack