Adding keywords in Windows Explorer causing Warnings

[exangle]

Hi all. I have begun using XnView MP and have noticed when viewing the ExifTool tab that the photos I have added keywords (Tags) to using the Details panel of Windows Explorer have Warnings. The warnings are different for each of my cameras. Do I need to worry about these warnings? Is there anything I can do to fix them? I am using Windows 10.
Here are the Warnings I am seeing in ExifTool.

Canon PowerShot

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ExifTool Version Number      12.85   
Warning      [minor] Adjusted MakerNotes base by 584   
Warning      [minor] Fixed incorrect URI for xmlns:MicrosoftPhoto   
Panasonic Lumix

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ExifTool Version Number      12.85   
Warning      [minor] Possibly incorrect maker notes offsets (fix by 184?)   
Warning      [minor] Suspicious MakerNotes offset for InternalSerialNumber   
Warning      [minor] Suspicious MakerNotes offset for BabyAge   
Warning      [minor] Suspicious MakerNotes offset for AFPointPosition   
Warning      [minor] Suspicious MakerNotes offset for FaceDetInfo   
Warning      [minor] Suspicious MakerNotes offset for LensType   
Warning      [minor] Suspicious MakerNotes offset for LensSerialNumber   
Warning      [minor] Suspicious MakerNotes offset for FaceRecInfo   
Warning      [minor] Fixed incorrect URI for xmlns:MicrosoftPhoto   
Sony CyberShot

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ExifTool Version Number      12.85   
Warning      [minor] Possibly incorrect maker notes offsets (fix by 556?)   
Warning      [minor] Suspicious MakerNotes offset for tag 0x1003   
Warning      [minor] Suspicious MakerNotes offset for tag 0x2003   
Warning      [minor] Suspicious MakerNotes offset for tag 0x200c   
Warning      [minor] Suspicious MakerNotes offset for tag 0x200d   
Warning      [minor] Suspicious MakerNotes offset for WBShiftAB_GM   
Warning      [minor] Suspicious MakerNotes offset for ShotInfo   
Warning      [minor] Fixed incorrect URI for xmlns:MicrosoftPhoto   
Fuji FinePix

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ExifTool Version Number      12.85   
Warning      [minor] Fixed incorrect URI for xmlns:MicrosoftPhoto   

[StarGeek]

The Fixed incorrect URI warning can be ignored. Microsoft did something stupid and changed the URI that is used for Microsoft metadata in a minor way. I have yet to see a program that has a problem with this.

For the offset warnings, see FAQ #15, I get MakerNote warnings or errors when reading or writing information. The offset warnings might cause problems with reading the MakerNotes if the file is edited again with a program that doesn't properly correct the offsets when editing the metadata. MakerNotes are the proprietary metadata that camera companies add to their images that contain details on the settings of the camera when the image was taken. The casual user can ignore them. Only someone who really wants to know exactly how a picture was taken would be interested.

Is there anything I can do to fix them?

First thing I'd advise is to not use Windows to edit you metadata. They aren't the most trustworthy when it comes to doing so. XnView is decent. Other good choices would be Adobe Bridge, DigiKam, and Darktable, all of which are free. The latter two are full-fledged Digital Asset Management (DAM) programs, with Darktable also having Lightroom like editing capabilities.

See the above FAQ on how to fix the warnings if you feel the need to do so.

[exangle]

Thank you. I have been adding keywords with Windows for years so it would take me a very long time to fix all of my photos. It is bugging me knowing the MakerNotes are messed up thanks to MS but I think I will leave them be for now. I will definitely not be using Windows to add keywords in the future.

[StarGeek]

You don't need to worry about the keywords that Windows did write. It writes them to the correct place.