Windows Imaging Format
Writablearchive
The Windows Imaging Format (WIM) is a file-based disk image format developed by Microsoft.
Identify it
| Extensions | .wim.swm.esd.wim2.ppkg.rwm |
|---|---|
| MIME types | application/x-ms-wim |
| Signatures | 4d5357494d at byte 0 (Windows Imaging Format) |
| PRONOM | fmt/614 |
| Wikidata | Q2304584 |
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From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.