Are you are experiencing the issue shown in the image below when you right click in the map window? Altering the Windows 10 Tablet PC Settings will fix this.
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Use the keyboard Windows button+R to get to the Window Run desktop app. Copy and paste shell:::{80F3F1D5-FECA-45F3-BC32-752C152E456E} to access Tablet PC Settings.
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Under the Other tab, check the radio button for Left Handed. Click Apply and then test. The context menu button pad should appear as expected.
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The following link is no longer available. To access this information, copy the title found in the url into the search tool on the top nav bar, or try searching for key words in the post. https://li360.pitneybowes.com/s/article/Resolve-right-click-Map-context-menu-offset-in-MapInfo-Professional