Can't download nor install Windows 11 Insider Preview Feature Update (26220.7934)

Windows 11 requires a small amount of space (about 128 MB) to be reserved on each drive for system files and other purposes. If the drive is too small, Windows might not have enough space to create this reserve area.

I tried again, and the same error happened. The error code is 0xc1900201.

I created a flash drive with the latest build from the UUP dump, and I still get this error message.

If the problem persists, providing the exact error message text or screenshot could help pinpoint the cause more precisely.

The system may be misreading the size of the partition due to file system errors or corruption.

It sounds frustrating to encounter the "partition is too small" error when trying to download or install the Windows 11 Insider Preview Feature Update, especially when you have nearly 1TB of free space. This issue can happen due to several reasons related to partition configuration or system requirements.