Hi,
Thanks for posting in Microsoft MECM Q&A forum.
Please navigate to User Configuration -> Preferences -> Windows Settings -> Drive Mappings to set the mapping drive policy in your GPO. Here are some good articles for your reference:
How To Map Network Drives With Group Policy (Complete Guide)
Using Group Policy Preferences to Map Drives Based on Group Membership
Please note: The links are not from Microsoft, just for your reference. Thanks for your time.
Best regards,
Simon
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