GPO to configure open file explorer to in windows 10
Solution 1:
I don't see a group policy setting for this, so you will need to use a User Registry Group Policy Preference.
If you want it to behave like a traditional Registry group policy, you may want to consider checking the box for "remove this item when it no longer applies". If you want it to apply only to Windows 10, you may want to consider applying the following WMI filter or WMI item level target:
SELECT Caption FROM Win32_OperatingSystem WHERE Caption LIKE "Microsoft Windows 10%"