Software & Apps Windows WHEA Uncorrectable Error: What It Is and How to Fix It Recover from one of the most common blue screen errors By Jeremy Laukkonen Writer Jeremy Laukkonen is tech writer and the creator of a popular blog and video game startup. He also ghostwrites articles for numerous major trade publications. our editorial process Facebook Twitter LinkedIn Jeremy Laukkonen Updated March 19, 2020 Windows The Ultimate Laptop Buying Guide Tweet Share Email The Windows Hardware Error Architecture (WHEA) uncorrectable error is a Windows stop code that is displayed on a blue screen. When this error occurs, your computer will typically compile some diagnostic data, then reset. If the root problem persists, your computer will eventually crash again with the same WHEA uncorrectable error message. WHEA uncorrectable errors are usually associated with faulty hardware, but they can also be caused by driver conflicts, missing Windows updates, and even overclocking. How the WHEA Uncorrectable Error Appears When this error occurs, you'll usually see a message like one of these: Your PC ran into a problem and needs to restart. We're just collecting some erro info, and then we'll restart for you.If you'd like to know more, you can search online for this error: WHEA_UNCORRECTABLE_ERRORA problem has been detected and Windows has been shut down to prevent damage to your computer.WHEA_UNCORRECTABLE_ERROR Causes of the WHEA Uncorrectable Error The WHEA uncorrectable error is a stop code displayed during blue screen crashes, and is usually caused by some type of hardware failure. A failing hard drive, defective memory, improperly seated CPU, and a variety of other hardware issues can all result in a WHEA uncorrectable error. In addition to faulty hardware, this error message can also be the result of driver conflicts and missing Windows updates that cause hardware to work, or not work, in unexpected ways. In some cases, overclocking can also cause this error to appear due to the extra strain overclocking puts on your CPU. How to Fix a WHEA Uncorrectable Error Since most WHEA uncorrectable errors are caused on hardware failure, fixing this error usually involves tracking down the problem component and replacing it. However, the best place to start is on the software end of things, because that's easier and less expensive. In general, you'll want to start by checking for Windows and driver updates, then running checks on components like your hard drive and memory. Use Windows Update to make sure that your system is up to date. If you don't have automatic updates turned on, or an automatic update failed for some reason, you might be missing a crucial patch. To make sure you're all up to date, just type "Windows Update" into your taskbar search field. If you're in need of any updates, you'll have the option to install them. You can also select Check for updates just to be sure. Make sure your drivers are up to date. Driver conflicts represent one of the most common causes of the WHEA uncorrectable error. If you're having a driver problem, it can be difficult to track down exactly which driver needs an update. Use this list of free driver updater tools for some much-needed assistance. Use System Restore to undo any recent changes to your computer. If you're unable to track down the change that causes your system to start experiencing WHEA uncorrectable errors, a system restore may fix the problem. This is a utility that allows you to restore your system to an earlier state, which effectively undoes any changes made in the meantime. Check for hardware issues with the Error Checking utility. Since the WHEA uncorrectable error can be caused by faulty hardware, running the Error Checking utility may help point you to the root cause of your problem. This utility works a lot like chkdsk, and it will let you know if there are any problems with your hard drive. You can also use chkdsk if you prefer. It doesn't have a graphical interface like the Error Checking utility, but it does provide a lot of additional options. Use a free memory diagnostic tool. Faulty RAM/memory is another hardware issue that can cause the WHEA uncorrectable error, and the easiest way to check for this is with a free memory diagnostic tool. If one of these tools says you have bad memory, replacing your RAM may get rid of your WHEA uncorrectable error. Disable overclocking in BIOS or UEFI. To easily access your system BIOS or UEFI to undo any overclocking changes you've made, type "Settings" into your taskbar search field, then navigate to Update & Security > Recovery > Advanced startup > Restart now. The restart process will start. Select Troubleshoot > Advanced options > UEFI Firmware Settings. If your computer uses BIOS instead of UEFI, these options will be slightly different. Your computer will restart and automatically open UEFI or BIOS. Navigate to the overclocking section, and disable all overclocking. This fix only applies if your system has been overclocked. If you bought your computer new, and you never overclocked it, then this fix doesn't apply. Physically inspect your computer hardware. You may have a physical defect or failure in one of your hardware components. Some things to look for include whether your cooling system is hooked up and functional, your RAM is securely seated in place, components like your CPU haven't come loose, and that everything is securely connected. Don't touch anything inside your computer unless you're using an anti-static bracelet. Reset Windows as a last resort. When all else fails, reset Windows. This is an irreversible process that essentially reinstalls Windows from scratch and gives you a clean slate. If you reset Windows, and you still experience the WHEA uncorrectable error, that indicates you actually do have a hardware issue. Carefully inspect your hardware again, and seek professional assistance if you aren't able to determine which piece of hardware has failed. Other Blue Screen Problems Like the WHEA Uncorrectable Error The WHEA uncorrectable error is just one of many errors that can cause Windows to display the blue screen of death. If you're experiencing blue screen issues, we have a full list of blue screen error codes that can help you get to the bottom of your problem. We also have a general guide to fixing the blue screen of death that may be of some assistance.