Garmin Xero C1 Pro chrono

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If it has an .exe extension, or other executable extension, you should be able to right click on the file in file explorer, and get the properties window to come up. Down toward the bottom is a place where you can "unblock" the file. Hit apply, then close, and try to run it then. This is a common thing for most Windows nowadays to set any executable to block from running. I don't know if power shell falls into this category but if nothing else works, it is worth a try.