Rainmeter and Wallpaper Engine use RAM and GPU. If you have an older PC, stick to just the Visual Style and skip the animated widgets.
Skin packs often modify system files. If something goes wrong, a restore point allows you to revert your PC to its previous state. windows 12 skin pack download 64 bit
Most "Windows 12" looks are achieved using a combination of these reputable tools: Rainmeter and Wallpaper Engine use RAM and GPU
While not a "skin pack" in the traditional sense, Rainmeter allows you to layer Windows 12-inspired widgets (clocks, system monitors, and docks) over your desktop for a modular look. How to Install a Skin Pack Safely windows 12 skin pack download 64 bit