PowerToys is a free and open source tweak application that's light on system resources, straightforward, powerful and advanced.
Here are some screenshots to illustrate the features and user interface of this application:
It may be aimed at power users, but using and installing the app is very easy. Screenshot of PowerToys - 2722px · 1986pxSet of freeware system utility tools. Screenshot of PowerToys - 2722px · 1986pxCustomize your workflow. Screenshot of PowerToys - 2722px · 1986pxSet of freeware system utilities. Screenshot of PowerToys - 2722px · 1986pxPowerToys: Power users. Screenshot of PowerToys - 2722px · 1986pxImprove your work process. Screenshot of PowerToys - 2722px · 1986pxPowerToys: Window manager. Screenshot of PowerToys - 2722px · 1986pxRenaming files in bulk. Screenshot of PowerToys - 2722px · 1986pxMore productivity tools. Screenshot of PowerToys - 2722px · 1986px