Before arbitrarily removing unknown registry entries, I suggest first running a full scan with Malwarebytes as well as running Adware Cleaner. MWB will install the premium realtime version as a trial. After trial ends, it will automatically revert to the free version which has to be run on demand. Quarantine anything MWB finds.
Quarantined files can then be removed if you so desire.
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Ran Adware Cleaner but this found only 3 items which were not suspicious and did not use Malwarebytes because it blocked some legitimate programs i used a year ago.Anyway, exported the file and saved it to external drive i had handy and deleted the file.
Re-started pc and did a full scan with Norton 360 for Gamers i have and no threats were found and been using pc without any problems.
Totally mystified where it came from.