this is what came up with scan for issues on reg cleaner...dont know what is safe to "fix" can anyone help sorry it is rather a large list
Unused File Extension AcroExch.Sequence HKCR\AcroExch.Sequence
Unused File Extension BearShare.AudioCD HKCR\BearShare.AudioCD
Unused File Extension NavShellExtEx.NavHelper.1 HKCR\NavShellExtEx.NavHelper.1
Unused File Extension OISbmpfile HKCR\OISbmpfile
Unused File Extension OISemffile HKCR\OISemffile
Unused File Extension OISgiffile HKCR\OISgiffile
Unused File Extension OISpngfile HKCR\OISpngfile
Unused File Extension OIStiffile HKCR\OIStiffil