| Error | Likely Cause | Fix | |-------|--------------|-----| | 0x800f0954 | DISM cannot find the source | Use /Source pointing to correct ISO folder and /LimitAccess | | 0x800f081e | Package not applicable | Check build number mismatch or package is already installed | | Language appears installed but UI is mixed | Missing language experience pack | Install matching LocalExperiencePack from ISO |