To create a correctly formatted Drives GPP, follow the below guidelines.
User Drive Maps GPP
$XMLItemAttributes = ("clsid","name","status","image","changed","uid","disabled","bypassErrors","userContext","desc","removePolicy","PRIMARYEND","action","thisDrive","allDrives","UserName","path","label","persistent","useLetter","letter","RUNONCE","SUBEND")
$XMLItemAttributes values
clsid - This is the clsid of the GPP Drive Maps item. GPP clsid Reference
name - Name of the GPP item.
status - A field that is updated when the value of the GPP is updated. Can be the same text as name or value.
image - This is the image that is shown in the Group Policy GUI. Image Reference
changed - Date the GPP is set. $DateUni = (Get-Date -Format u).TrimEnd('Z').
uid - Generate GUID. $GUID = ([guid]::NewGuid()).ToString().ToUpper().
disabled - Enabled 
or Disabled 
. Icon color is indicating the action taken when pressed. On an enabled GPP it is red and on a disabled GPP is green.
bypassErrors - Sets the Stop processing items in this extension is an error occurs. Value of 1 is unchecked, value of 0 is checked.
userContext Sets the Run in logged-on user's security context (user policy option). Value of 1 is checked, value of 0 is unchecked. Only used in User Registry GPP.
desc Set's the Description text. By default includes the $FirmName and $Date. Useful to add additional notes about what the setting actually controls.
removePolicy - Sets the Remove this item when it is no longer applied. Value of 1 is checked, value of 0 is unchecked. Only works with Replace action.
PRIMARYEND - Internal script header to indicate XML subnode.
action - Identifies the action for the GPP.
| Action | Value |
|---|---|
| Create | C |
| Replace | R |
| Update | U |
| Delete | D |
thisDrive - Values are NOCHANGE, HIDE or SHOW. This configures the visibility of the drive in Windows Explorer.
allDrives - Values are NOCHANGE, HIDE or SHOW. This configures the visibility of all mapped and physical drives in Windows Explorer.
UserName - Microsoft removed the ability to store passwords in GPP and that option is now grayed out.
path - The network path the drive will be mapped to.
label - The name that will appear on the drive in Windows Explorer.
persistent - Checks the Reconnect box to make the drive mapping persistent through workstation reboots. Value of 1 is checked, value of 0 is unchecked.
useLetter - Set the Drive Letter option to Use first available, starting at: or Use. Value of 0 is User first available, starting at: and a value of 1 is Use.
letter - Identifies the letter of the drive to use. Values can be A .. Z.
RUNONCE - Signifies if the GPP should be set to Apply once and do not reapply. Valid values are YES or NO.
SUBEND - Internal script header to indicate XML subnode ending.
Drives GPP Examples