Open the Settings app. 2). Click on Update & Security. 3). From the left-hand menu, select Backup. 4). Here, you should see any backups associated with your account. You can select and delete them as needed. The screenshot you have shared shows the restore points of your PC. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.