How to fix Windows 11 system using too much data

Manage System Restore Points is a built-in Windows tool that helps address Why is the system using so much data in Windows 11 by reducing unnecessary disk and resource usage.

It allows you to reclaim significant storage space by managing old restore points and adjusting the maximum space allocated for system protection.

First, type "Create a restore point" in the Start menu search bar. Select the C: drive and click "Configure". Delete old restore points, keeping only the latest one. You can also reduce the Max Usage slider to 5% instead of the default 10–15%.

Once configured, the system will stop using excessive disk space for outdated restore data.

This method helps resolve Why is the system using so much data in Windows 11 caused by oversized system protection files, freeing 5–15GB of disk space.

If you want to reduce system bloat without third-party software, you can try this method. It is a simple yet effective measure, so you should apply it carefully to avoid reducing system recovery safety too much.

ps

• Never completely disable System Restore, as it is essential for repairing serious system errors.
• Do not set the maximum usage limit too low (below 5%), as this may prevent Windows from creating new restore points after updates.
• Before deleting old restore points, ensure that your system is running stably and that you have performed a recent backup.
• If you frequently update your system or install new software, keep at least one or two older restore points as a backup.