TortoiseGitMerge doesn't open for non-administrator account

I installed latest versions of SourceTree ( and TortoiseGit ( Now when trying to resolve merge conflict using external tool, small window flashes quickly and TortoiseGitMerge window doesn't open. If I run SourceTree as administrator - everything works as expected (SourceTree settings and .gitconfig are identical in both cases). Is it possible to have it working for non-administrator account?

Update: I reinstalled old versions of TortoiseGit and SourceTree, and nothing changed, I still can launch TortoiseMerge as external merge tool only when I run SourceTree as administrator.

2 answers

At the surface, it sounds like a problem with TortoiseGitMerge rather than SourceTree.

@Seth I reinstalled my previous version of TortoiseGit -, didn't help. Then I reinstalled my old version of SourceTree - 1.6.18, didn't help either. So looks like issue isn't related to versions. Then I tried to run SourceTree as administrator - still works just like before. 

The question still holds - how to be able to merge without running SourceTree as administrator.

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