How to enable Classic System Properties in Windows 10 version 20H2

1. Download this file, then extract the file.

2. Run command prompt as administrator.

3. CD ( change directory ) to the folder where the file has been extracted.

4. Type and enter this command :

mach2 disable 25175482

5. Check if the classic system properties has back or not , by right clicking "My Computer" and choose properties.