How Much Disk Space Should I Use for System Protection?

The appropriate allocation of disk space for system protection varies depending on several factors, such as your PC usage frequency, available free space on your hard drive, and specific requirements. For example, if you frequently install or uninstall various software on your computer, it is advisable to have more system restore points available.

System restore points serve as snapshots of your system files and registry, enabling you to restore computer to an earlier date if any issues arise. On average, an individual system restore point requires around 1GB of disk space. It is recommended to allocate 2% to 10% of your total disk storage space for system restore point storage, with a minimum of about 20GB.

Usually, restore points on a computer need to be created manually. However, an automatic mode is available. It is recommended to turn it off and delete useless restore points if you don't want system restore running out of disk space.

If your system restore is not working, there is a more flexible way to backup and restore your system - using professional yet free backup software, AOMEI Backupper Standard. This freeware allows you to create system, disk, partition, and file backup per your needs, and restore the backup easily. It also offers an Automatic Backup Cleanup feature (in Pro version) that helps you automatically delete old backup images based on a set rule to save storage space.