[Fixed] Windows 10, wont save/load from some drive roots

[micheus]

If it was a permissions issue, wouldn't it exist for the older versions of wings too? 1.5.4 has no complaints about reading or writing form my D root, even when not running it as admin. And wouldn't it apply to the root of C as well as D?

Probably yes. But it's Windows...
I suggest you to check those permissions and - in case confirmed the permissions issue - change they if you really want/need to use your hard drivers root.