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Win32 Error 779 (ERROR_MEMORY_HARDWARE): Meaning & Checks

779 is a device or driver result. Microsoft’s system-code table describes this value as: “The hardware has reported an uncorrectable memory error.”

Code reference and safe checks

Read the exact screen and operation before selecting a repair. This page does not run commands or collect files, keys or logs.

What this value means

Microsoft’s system-code table describes this value as: “The hardware has reported an uncorrectable memory error.”

ERROR_MEMORY_HARDWARE is a Win32 system result, usually returned to an application or API caller. It is not a Windows blue-screen code or a diagnosis of the whole PC.

Identity and provenance of 779
Code779
Hex form0x30B
SymbolERROR_MEMORY_HARDWARE
Windows familyWin32 system codes
Source levelMicrosoft code and symbol entry

Safe next steps

  1. For 779 (ERROR_MEMORY_HARDWARE), identify the device and exact model that produced the code; record recent driver, firmware, or hardware changes.
  2. Check Device Manager and the manufacturer’s official support page. A driver name or code is a lead, not proof the device is damaged.
  3. Stop if the device overheats, disconnects repeatedly, or needed files are at risk.

After one step, repeat the original operation and record whether this same code returns. A different code needs a fresh interpretation.

What this code cannot prove

The source establishes the identifier and reference meaning. It does not establish the cause on your specific PC.

If the result differs from the documented message or a repair could remove data, stop and use the official source or vendor support.

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Official reference and verification

Source type: Microsoft code and symbol entry. Checked against the source set on Nov 2, 2026.

Open the source reference ↗

The reference gives the meaning of this identifier. It does not inspect your PC or guarantee that one repair will work.