Debloat Windows 10 - A collection of Scripts which disable / remove Windows 10 Features and Apps.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Tiny10 - Based on Windows 10 LTSC 2021, tiny10 aims to be a lightweight version of Windows 10 for low-end PCs and the like!
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
O&O AppBuster - Remove Windows 10 apps, including hidden ones.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.