Windows | 7 Loader Activator By Daz V2.2.2

Absolutely not. The risks far outweigh any temporary benefit. Even if you find a "clean" copy, you are:

DAZ’s loader set the template for modern activation bypasses: WINDOWS 7 LOADER ACTIVATOR BY DAZ V2.2.2

If you bought a secondhand PC with Windows 7 and suspect it was activated illegally, check: Absolutely not

Other signs: