RemoveGitTags.txt

Replace with your own usename and email:
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git config --global user.name "Username"
git config --global user.email "[email protected]"

These next two commands tell Git to use your Windows credentials to store your origin password.
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git config --global credential.helper wincred
git config --global credential.helper store

Deletes all Local Tags by running "git tag" and feeding that list to "git tag -d".
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FOR /f "tokens=*" %a in ('git tag') DO git tag -d %a

This deletes all Remote/Origin Tags from the list output by "git tag -l".
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FOR /f "tokens=*" %a in ('git tag -l') DO git push --delete origin %a

I had to run the 1st command a second time for "git tag" to not list tags anymore.