SearchMyFiles is a powerful alternative to the standard Windows search. It allows you to easily find files by wildcard, last modified/created/last accessed time, file attributes, content (text or binary search) and file size. File types available for search includes Microsoft Office and PDF files. The program also be detect duplicate files via the “Search Mode” drop-down box.
Note that the program is non-indexing, meaning it searches the drive directly, which is often slower but more accurate.
