Stw4sh5tr45j3d-pl4k.part4.rar -

Download and install (official) or 7-Zip (free/open source). Windows' built-in "Extract All" feature often struggles with multi-part RAR files. Start from Part 1 Right-click only on STW4SH5TR45J3D-PL4K.part1.rar . Select "Extract Here" or "Extract to [Folder Name]" .

You cannot extract part4.rar on its own. You must have all other parts (e.g., part1.rar , part2.rar , part3.rar , etc.) in the on your computer. STW4SH5TR45J3D-PL4K.part4.rar

Do you have (1, 2, and 3) downloaded in the same folder? Download and install (official) or 7-Zip (free/open source)

The filename STW4SH5TR45J3D-PL4K appears to be an or a Scene Release tag (the suffix -PL4K often refers to specific release groups). If this is a game or software, once extracted, look for a .exe setup file or an .iso disk image inside the resulting folder. Select "Extract Here" or "Extract to [Folder Name]"

Ensure all parts are in the exact same directory and named identically aside from the part number.

The software will automatically pull data from part2 , part3 , and your part4 file to reconstruct the original content.

This usually means one of the parts (likely part4 in your case) didn't download correctly. Delete the file and download it again.