A friend's PC, built in 2022, had been experiencing random crashes, game errors, and other instability. We verified game files, completely reinstalled the graphics drivers, ran SFC and DISM, and tried other troubleshooting steps without finding the cause.
The motherboard BIOS was about four years and more than 15 versions out of date. The board is known to have issues with an older BIOS version, so we reset the CMOS and eventually managed to update it to the latest release. After the update, the system became even less stable and started crashing every few minutes.
We decided to perform a clean Windows installation, but setup fails at around 75% every time. Resetting the BIOS to its default settings did not help. Secure Boot and TPM 2.0 are enabled.
Could the motherboard, memory, installation USB, or storage drive be failing? What should we test next?
Hardware:
- CPU: Ryzen 5 7600X
- GPU: RTX 5060 MSI Ventus
- Memory: 32GB DDR5-5600
- Motherboard: Gigabyte B650 Aorus Elite AX, revision 1.0
- Storage: Western Digital 1TB SATA hard drive
4 Answers
Keep the firmware at a stable release, load default BIOS settings, and avoid memory overclocking or EXPO while troubleshooting. Run the RAM at its standard settings first. Check the motherboard manufacturer’s support notes for the exact revision and BIOS file, since revision-specific firmware matters.
If the system remains stable in BIOS but fails during installation with known-good media and memory, replacing or testing the SATA drive would be the next practical step. If it is unstable even in BIOS, focus on RAM, motherboard, CPU, or power delivery instead.
Random crashes followed by setup failing while applying the Windows image can point to defective RAM. Run MemTest86 or a comparable bootable memory test. If it reports errors, test one memory module at a time in the recommended slot, then test the other module separately. Reseat the DIMMs and clean the contacts only with appropriate electronics-safe methods.
A memory test is more useful here than relying on the quick memory check performed during startup, since intermittent faults may only appear with particular data patterns.
First determine whether the machine is stable even before Windows starts. Unplug it, discharge it with the power button, boot into the BIOS with default settings, and let it sit there for several minutes. If it crashes or freezes in the BIOS, Windows is not the cause.
Also recreate the installation USB, preferably with a different flash drive, and try another operating system or Windows version as a diagnostic test. The old installation’s Event Viewer could have provided clues, but hardware testing is still possible now.
The installation media or the target drive could both be responsible for a failure around 75%. Recreate the installer using a known-good USB drive, and disconnect any other storage devices during setup so there is no chance of selecting the wrong disk.
Use the installer’s disk tools to remove the existing partitions from the 1TB drive and let Windows create them again, but make sure anything important is backed up first. If setup still fails, test with another drive. A failing mechanical hard drive is a realistic possibility, especially given the earlier crashes and file errors.
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