Hello Greg,
It seems that the installation package did not download correctly. Before running it, please check that it is unaltered and complete by verifying it’s digital signature.
In Windows Explorer, right-click the .msi-file, select properties and the ‘Digital Signatures’ tab. Verify that it is OK. If not, download again and verify.
Also, do verify that you are using the right ‘bitness’ – 32-bit for 32-bit Windows and 64-bit for 64-bit.
Finally, if you’re upgrading, ensure that you have not run any ‘cleaners’ that delete old installation files and such. They are needed for uninstalls and upgrades.
Regards,
Svante
