Like OneNote, Onetastic comes in two versions: 32-bit and 64-bit. You need to install the correct
version based on whether you are running 32-bit or 64-bit version of OneNote. Note that
even if you are running 64-bit version of Windows, you may still have 32-bit version of
To check which version of OneNote you are running, choose your OneNote version below:
Click on File on the ribbon:
Choose Account and then About OneNote on the right:
This will display the following dialog. Find the bitness at end of the first line as shown below:
Choose Help and then find the bitness on the right side:
OneNote Windows 10 App does not support third party add-ins. Onetastic is not available on this version.
You can get OneNote 365 for free from onenote.com/download.
OneNote for Mac does not support third party add-ins. Onetastic is not available on this version.
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