I tried installing a newer version of the BOINC software and something went wrong with the installation but when I tried it again I got an Internal 2718 error.

This usually means registry entries are corrupt and I used a regscan to try and tidy things up plus MS install clean-up. All that made a difference but not much since I still get an error just a different one, error 1714. and says it can't remove an older version of the software.

I have also tried re-installing the orginal version I was running but this just fails too with an error saying "The configuration data for this product is corrupt contact your support personnel"

I have manually scanned the register using regedit but can't find entries for the software but something must be there convincing the install process that a previous version is still installed.