Forum Discussion
Dylanopen
Oct 28, 2024Copper Contributor
C drive is full. How can I extend C drive without losing data on Windows 10 PC?
 Hi all,     I have a old Windows 10 PC with only 128 GB SSD. I did a mistake when partitioning the drive. The C drive only has 60GB space and C drive is always full, especially after installing a new...
- Sep 05, 2025I ran into the same 60 GB C: squeeze and used Dr.Partition to shrink the next partition and extend C: on the fly—no data loss. Super simple wizard, one reboot to apply, and my files/settings were all still there after. https://www.uuwinfox.com/extend-c-drive Highly recommended! 
bwayakethy
Oct 28, 2024Copper Contributor
Honestly, 60GB of C drive is not enough for running Windows 10 smoothly. One simple trick to fix C drive full issue is by using the default disk cleanup utility to delete the old Windows 10 OS backup file. However, the c drive will be full when a new Windows 10 update is available for installation.