Since August 26, my Windows 11 PC has crashed about once per day, and the crashes happen in different situations. I'm not sure whether a recent update triggered this. The Reliability Monitor hasn't clearly pointed to a hardware problem. Today's report shows a BlueScreen with code D1, which usually corresponds to DRIVER_IRQL_NOT_LESS_OR_EQUAL. The system is running build 10.0.26200, and Windows created a minidump named 083126-30015-01.dmp. What would be the best way to identify the faulty driver or hardware?
3 Answers
You can also run `sfc /scannow` from an elevated Command Prompt, followed by `DISM /Online /Cleanup-Image /RestoreHealth` if Windows reports corruption. Those commands won’t fix a bad driver, but they can rule out damaged system files. Make sure important files are backed up before doing deeper troubleshooting.
The D1 code commonly indicates a faulty or incompatible driver, but the parameters alone aren’t enough to identify which one. Check C:WindowsMinidump and collect all the dump files rather than relying only on the Reliability Monitor. Analyzing several dumps with a debugger can reveal whether the same driver is involved each time. In the meantime, update or reinstall recently changed graphics, chipset, network, and storage drivers, and consider rolling back anything installed around August 26.
A loose RAM module can cause crashes that look like graphics or driver problems, especially in a desktop that has been moved or exposed to temperature changes. If this is a prebuilt system, check the warranty before opening it. If you’re allowed to inspect it, power the PC down completely and make sure the memory sticks are fully latched; otherwise, have the manufacturer or a repair shop do it. Running a memory test is another useful step.
It’s a prebuilt desktop that I’ve owned for more than a year. I’m nervous about opening it because I don’t want to affect the warranty, so I’ll check with the manufacturer first.