We are also seeing this issue with our main software. We are advising our customers to disable the shell extensions/overlays or simply remove the Dell Backup and Recovery Software.
Why has Dell not addressed this issue? Not even a "thanks for letting us know, we are working on it.".....
Oh, yeah, its because it is Dell.
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We have the same issue for GNS3 users. We need to ask them to uninstall Dell's Backup and Recovery
We had the same problem in our application and realized that only version 22.214.171.124 is concerned and it sometimes come pre-installed on some PCs.
Version 126.96.36.199 did not use Qt yet and in version 188.8.131.52, they removed the dependency in the shell overlay DLLs.
So upgrading DBaR is enough to workaround the issue.