How to shrink c drive without losing data on Windows 11?

To shrink C drive without losing data is possible by carefully managing disk space and using built-in Windows tools. Here are some safe and effective steps:

1. Use Disk Cleanup
Press Windows + R, type cleanmgr, and hit Enter.
Select drive C:.
Check the boxes for files you want to delete (e.g., temporary files, system cache).
Click OK, then "Delete Files."

2. Uninstall Unnecessary Programs
Go to Settings > Apps > Installed apps.
Sort by size to identify large programs.
Uninstall programs you no longer need.

3. Manage System Restore and Shadow Copies
Right-click This PC, select Properties.
Click System Protection.
Select C: drive, then click Configure.
Reduce the disk space used for restore points or delete older restore points.

4. Move Files to an External Drive or Another Partition
Transfer large media files, documents, or downloads to an external drive or different partition.

5. Use Storage Sense

Go to Settings > System > Storage.
Turn on Storage Sense to automatically free up space by deleting temporary files.

6. Disable or Reduce System Restore Points (if needed)
Be cautious: this will limit your ability to revert system changes.

7. Resize Partitions (Advanced)
If you have unallocated space or other partitions, you can use Disk Management:
Press Windows + X and select Disk Management.
Right-click on C: and choose Extend Volume if space is available.

Note: Shrink C drive without losing data, or extend requires unallocated space right after C: and careful operation—backup data beforehand.