Rolu, Welcome to the Cyberlink forums. :
Although you have a similar symptoms to the ones above, you may not have the identical solution because of hardware or other software on your computer (antivirus, registry cleaners, etc.)
Here are the limits of the demo version:
Limitations
30-day trial version.
VC-1/H.264/Blu-ray format playback in the trial version is limited to systems with hardware acceleration.
Does not support the playback of HEVC/H.265 content.
Does not support the playback of CPRM/DTCP-IP protected content.
Does not support USB Sync and Home Media Server.
A CyberLink account is required to access CyberLink Cloud features.
2GB of free storage in CyberLink Cloud is provided during the trial period.
Media content in CyberLink Drive may be deleted when the trial expires.
CyberLink Cloud for Power Media Player is not supported in the trial version.
Transcoding media before uploading to CyberLink Cloud is not supported in the trial version.
IF you do not have exactly the same computer hardware as the people above, please start your own thread and supply the dxdiag evaluation of your computer. See Part B here:
http://forum.cyberlink.com/forum/posts/list/7958.page
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BoilerPlate: To posters who ask for help -- it is nice to thank the volunteers who try to answer your questions !
Anything I post unless stated with a reference is my personal opinion.