I recently updated my sandbox VM from Windows 7 to Windows 10 with the updating tool that pops up next to your clock, but since doing this when I connect to the VM through RDC my RDC client (MSTSC) no longer stores my credentials, even though I keep the box ticked, and I have to enter my password each time. It didn't do this before when I was on Windows 7.

Tried Googling to no avail. Hoping someone can help! Many thanks