files to delete?

Being new I wonder should I alow CCleaner to delete the ".LNK" files or will this affect my access to them?

NO, don't do that. You will lose all your shortcuts, like the ones on your desktop and possibly the ones in Start, All Programs.

I mean, no personal files or system file need to run the PC will be lost, but it'll make navigation a bit of a cow.

Plus, each .LNK file is miniscule, you would have to delete 1000's and still no space savings would be noticeable.