CCleaner's registery cleaner

Is it possible, to make the cleaner also checking for entries not linked to anything? I had a few entries from Programs ive uninstalled but it is still there so i had to manually remove it:)

If that is possible i would be grateful as it would delete much more entries and prove much more useful:)

Might slow the cleaner down a great bit, but it still be excellent to have:)Just to make it a option like a checkbox or something for it or do the usual cleaning:)

That is a common problem with most registry cleaners. I don't think anything can be done.

So all i can do is delete them manually? Also, I only cleaned out the files i found in HKLM(Local Machine)/SOFTWARE/

Is it any other place it lies? And ive heard having to much registry keys slows down your computer when it gets many. Is that true?

They are commonly found in HKLM/SOFTWARE and HKCU/SOFTWARE.

As far as having alot of registry entries. That's pretty much a myth with todays hardware, just watch your startup entries.