1. Take WIN7 system as an example. Turn on disk management, and any disk with "Page File" status cannot modify the drive letter. There will be parameter errors when modifying the drive letters of disk C and disk J in the picture, so how to solve them?

2. Right-click the computer, and then click Properties.

3. Click Advanced System Settings to open the system properties.

4. Click Advanced, and then click Performance Settings.

5. Click Advanced, and then click Change under Virtual Memory.

6. Select the disk with incorrect parameters (disk J in the figure), click the non-paging file in turn, and set and confirm. After that, the computer will prompt to restart the computer to take effect. Click Restart. After the restart, we can change the drive letter.