How to Fix “WHEA_UNCORRECTABLE_ERROR” on Windows 11

Quick Fixes

• Launch the Memory Diagnostic Utility from the Windows search menu and click ‘Restart now and check for problems’ to fix system memory issues causing the BSOD error.
• Roll back the recent Windows update installation from Settings > Windows Update > Update history > Uninstall updates.

What Is the ‘WHEA_UNCORRECTABLE_ERROR’ BSOD Issue?

The ‘WHEA_UNCORRECTABLE_ERROR’ is a BSOD (Blue Screen of Death) issue that usually indicates a hardware problem on your Windows 11 PC. It may arise due to one of the following reasons:

• Corrupt or outdated device drivers.
• A hardware component failure.
• Bad or corrupted system memory (DRAM).
• Overheated system components.
• Software conflicts.
• A buggy Windows Update.

Basic Fixes

• Update all device drivers: Obsolete device drivers on Windows 11 can result in the ‘WHEA_UNCORRECTABLE_ERROR’ BSOD issue. Open the Device Manager app and expand all device entries to look for a yellow warning sign. Right-click the problematic device and select Update driver.
• Avoid using the system when overheating: Overheating system components can cause BSOD errors. Wait patiently and use the system when it cools down.
• Remove overclocking system components: Overclocking various system components leads to erratic temperature spikes. You must remove overclocking the system components (RAM, CPU, or GPU), and reboot the PC.
• Update Windows 11: Press the Windows + I shortcut to open Settings, select Windows Update from the sidebar, and install available system updates.

Fix 1: Run a Check Disk Scan

Disk errors such as bad or missing sectors are a common reason behind BSOD issues on Windows 11. Run the Check Disk utility to scan and repair them.

Step 1: Press the Windows key, search CMD, and click Run as administrator.

Step 2: Type chkdsk /r in the console and hit Enter to initiate a new Check Disk scan.

Step 3: Type ‘y’ when prompted and press Enter to begin it. Once the scan completes, reboot your PC.

Fix 2: Check RAM With Memory Diagnostic Utility

If the Check Disk scan doesn’t find any errors, you must inspect the system memory for issues (e.g. corrupt memory, DRAM). Windows 11 offers a Memory Diagnostic Utility to check and resolve all RAM-related errors.

Step 1: Press the Windows key, search ‘Windows Memory Diagnostic‘, and click to open it.

Step 2: Click ‘Restart now and check for problems (recommended)‘ to begin the memory scan.

Step 3: Your PC will restart and boot into the utility page to scan and resolve system memory errors. Restart your PC once the scan completes.

Fix 3: Use Event Viewer to Identify a Problematic Device

Microsoft Windows offers an Event Viewer tool that contains a comprehensive log of all system events including errors and warnings. You can use it to locate the ‘WHEA_UNCORRECTABLE_ERROR’ and find the underlying cause to fix it.

Step 1: Press the Windows key, search Event Viewer, and click to open it.

Step 2: Double-click Administrative Events under Custom Views to view critical, error, and warning events from all administrative logs.

Step 3: Select the ‘WHEA_UNCORRECTABLE_ERROR’ in the list to view the associated details such as the Vendor ID or PCI ID of the device reporting the issue. Once you’ve identified the problematic hardware (e.g. video card), try reconnecting or reseating it.

Fix 4: Uninstall the Recent Windows Update

Sometimes, a buggy Windows update can break existing PC features. If you’re getting a BSOD error after a recent Windows update installation, roll it back to restore normalcy.

Step 1: Press the Windows key, search Uninstall updates, and click it to open the associated system settings.

Step 2: Locate the recently installed update using the ‘Installed on’ timestamp, and click Uninstall to revert it. Select Uninstall when prompted to confirm it.

Fix 5: Reset BIOS Settings

If you notice the ‘WHEA_UNCORRECTABLE_ERROR’ on Windows after tweaking BIOS settings, you must revert them to their default state.

Note: BIOS settings page and menus may appear differently on your PC.

Step 1: Restart your Windows PC and press its designated key to boot into the BIOS menu.

Step 2: Navigate to the Exit tab and select Load Default Settings.

Step 3: Select Yes when prompted to reset all BIOS settings.