Hi Mario,
1st mistake, you cannot install one version over the top of another version, it is necessary to completely uninstall PDR7 before you install PDR8.
Uninstall PowerDirector in accordance with Part C
http://forum.cyberlink.com/forum/posts/list/2405.page
You may have some problems completely uninstalling, so use the Microsoft clean up tool to uninstall. It is important that you remove all traces of PowerDirector from your computer, before installing PDR8, so make sure you check for any hidden files remaining after uninstalling. Also uninstall PhotoNow.
When you are sure that All remnants of PowerDirector have been removed, install PDR8
Robert
Intel i7 930, 16GB ram, Radeon HD 5770 1Gb,Ver. 14.12 Win7 64 bit
Intel i7 7700 HQ, 16 GB ram Nvidia GTX 1050Ti 4GB dual drives 1 TB SSD + 1 TB HDD Win 10
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