Yes ignore it. There are plenty of free Registry and system cleaners around,the one mentioned will probably scan, find a number of problems (which may or may not exist) and ask for some £ before fixing any of them. CCleaner here click here RegScrubXP here click here
One of the problems with registry cleaners is that sometimes they give a bewildering list of items that is suggested should be changed/deleted. My advice is the old chestnut 'If it ain't broke, don't fix it'
I've cleaned hundreds of regisitries using various free and paid for utilities. Never had any significant problems caused by it. Very often find that it improves performance significantly. Always do a system restore checkpoint first. ccleaner, as jimv7 mentions, does a good job.
Iv'e tried a couple of the so called free cleaners and they found the obligatory 400 or so problems which was great untill I clicked the fix box then they held their hand out for some money. Are there any really free cleaners?
Reg Seeker click here is free & does a great job, & I've never had any issues after using it. You can also search the registry etc with it. In my experience esp when cleaning up relatives & friends? Pc's registry cleaners sort problems out rather than cause them.