You can partition C drive in Windows 11/10 without formatting using Shrink Volume or Diskpart command line & create a new partition out of it. Learn the procedure here.

When Partitioning hard drive, you risk data loss. Here's how to re-partition a hard drive in Windows 11/10 without erasing data.

Windows can and will crash — and after it does it may not boot normally. To be prepared for worst-case scenarios, learn how to create a bootable recovery partition on your system drive.

The Disk Management tool of Windows is also available to partition devices. The steps below tell you what you need to do in order to partition a USB drive using Disk Management.

If you need to move your files to a new partition, but you don't have extra storage, then use this workaround on Windows 10.