Deleteinvalid Files - is a Windows Utility that you can use to delete files and folders that you are not able to delete using the standard Windows Delete function.
New version includes a function to Scan for Invalid and Too-Long Names.
... effective entries is is registry to use very very which yet invalid or not by using a special 3 step method to check each entry to ensure that it is indeed invalid.
... correction for registry registry! scans the tool. your invalid path references, fonts, help files, application paths, obsolete Start Menu items, invalid shared DLLs and more.