Custom markup warning

This policy setting specifies how Word behaves when opening a document that contains custom XML markup.

If you enable this policy setting, you can set the behavior to one of the following:

- 0: Do not prompt the user and silently remove the custom XML markup.

- 1: Prompt the user regarding the loss of custom XML markup. This is the default option.

- 2: Prompt the user regarding the loss of custom XML markup, and do not allow them to suppress this prompt.

- 3: Prompt the user regarding the loss of custom XML markup, and open the file read-only.

- 4: Prompt the user regarding the loss of custom XML markup, do not allow them to suppress this prompt, and open the file read-only.

- 5: Do not prompt the user and silently remove the custom XML markup, but open the file read-only.

Custom markup warning:

0. Do not prompt
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\word\options
   Value Name	custommarkupwarning
   Value Type	REG_DWORD
   Value	0

1. Prompt
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\word\options
   Value Name	custommarkupwarning
   Value Type	REG_DWORD
   Value	1

2. Always prompt
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\word\options
   Value Name	custommarkupwarning
   Value Type	REG_DWORD
   Value	2

3. Prompt and open the file read-only
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\word\options
   Value Name	custommarkupwarning
   Value Type	REG_DWORD
   Value	3

4. Always prompt and open the file read-only
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\word\options
   Value Name	custommarkupwarning
   Value Type	REG_DWORD
   Value	4

5. Do not prompt and open the file read-only
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\word\options
   Value Name	custommarkupwarning
   Value Type	REG_DWORD
   Value	5