Forum Discussion
HaydenMiller
Dec 31, 2025Iron Contributor
How do I free up space on Windows 10 when c drive is full?
I have an 12-year old Windows 10 PC with a small size SSD drive. The C drive is 80GB and now only 7 GB free space is left. This is a very common issue as the SSD volume is quite small at that time. N...
Versecxy
Dec 31, 2025Iron Contributor
Using Compact OS is indeed a good option to free up space on Windows 10, especially on small SSDs. It compresses the Windows system files to save space.
Pros:
Can save a few gigabytes of space.
Safe to use as it compresses system files without affecting your personal data.
Steps of free up Space Windows 10:
1. Open Command Prompt as Administrator.
2. Type the following command and press Enter:
compact /CompactOS:always
Wait for the process to complete.
3. To revert and disable Compact OS:
Open Command Prompt as Administrator.
Type:
compact /CompactOS:never
Press Enter and wait for it to finish.