By default, Windows will automatically assign the drive letter in sequence on the newly added drive. In case you wanted a different drive letter, you can follow as following steps,
1. Using the command line, type diskmgmt.msc and press Enter to open the Disk Management tool. Right click on the drive and select Change Drive Letter and Paths.
2. Click on Change and the box will prompt you to change the drive letter. Then, click OK to assign the new drive letter.
3. You will receive below notification. Press Yes to continue.
Note
Some programs that rely on drive letters might not run correctly.
Do you want to continue?
4. You have now successfully change the Windows drive letter.
