whea_uncorrectable_error
Moderate
Microsoft · Windows
Windows Hardware Error Architecture detected a fatal, uncorrectable hardware error — the CPU, RAM, or another hardware component reported a failure that Windows cannot recover from
Quick Answer
Error code WHEA_UNCORRECTABLE_ERROR on your Microsoft Windows means: Windows Hardware Error Architecture detected a fatal, uncorrectable hardware error — the CPU, RAM, or another hardware component reported a failure that Windows cannot recover from. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
If you recently overclocked your CPU or RAM, revert all settings to default in BIOS — enter BIOS and load optimized defaults
2
Check CPU temperatures using HWMonitor or Core Temp. If idle temps exceed 60°C or load temps exceed 90°C, reapply thermal paste and clean the cooler
3
Run Windows Memory Diagnostic: press Win+R, type mdsched.exe, and select 'Restart now and check for problems'
4
For more thorough RAM testing, download and run MemTest86 from a USB drive — let it complete at least 4 passes
5
If RAM test fails, remove one stick at a time and test individually to identify the faulty module
6
Update your BIOS/UEFI firmware from the motherboard manufacturer's website — follow their flashing instructions carefully
7
If the error occurs only during heavy CPU load, the CPU itself may be degrading — test with a known good CPU if possible
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Thermal paste (Arctic MX-4 or similar)
Replacement RAM module if test fails
Replacement CPU if degraded
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