Make sure that you run the installation as a user with administrator rights. Also deactivate your firewall and anti-virus program. If you do not want to deactivate both, please setup special exception rules. This will be necessary for the normal operation.
How to configure your firewall and anti-virus program:
- In your firewall options, please create exception rules for all ports and URLs listed under the following link: List of ports and URLs used by GMG ColorProof
- In your anti-virus program, deactivate the on-access scan for the directory c:\users\public\gmg and for your hotfolder directories.