How To Create a System Restore Point ?
Open the Start menu, Search for Create a restore point and select it from the list of results.
On the System Protection tab in System Properties, select Create.
Enter a description for the restore point, and then select Create > OK.
Under “Disk Space Usage,” you can adjust the max storage space allocated to storing restore points. By default, Windows only uses a small percentage of the total available storage of a particular disk drive, and as the reserved space fills up, older restore points will get deleted to make space for future restore points.