sign pro PDF setup failed - error 0x80070666 in log file
This error can occur when installing release 220.127.116.11 of sign pro PDF but should not occur with release 18.104.22.168.
It is caused by the existence of already installed VC redist packages which sign pro PDF is trying to install as well.
The workaround is as follows:
- Remove (i.e. uninstall) the VC redist items for VC 2015 & 2017 only
- Install sign pro
- If the VC 2017 redist was originally installed, reinstall it