This is a Microsoft problem.
Windows things that a drive, i.e. an USB stick is missing.
Similar situation is answered here:
This is what most users had to do to fix the problem:
1) Open Windows Explorer
2) Right click on Computer and select Manage
3) On the left panel, select Disk Management
4) Right click on Disk 2
5) Select Change Drive Letter and Paths...
6) Select Change...
7) Assign an available drive letter greater than G: