Error 0x800701B1 - Steam disk write error - non-existent device specified fix
Possible solution for error 0x800701B1 on laptops
Fixes:
Control Panel - System and Security - Power Options - Change plan settings - Change advanced power settings - PCI Express - Link state power management - Off
If you have a PC and a SATA drive, set up a clock extender.
Setup + Description
Lenovo Legion R7000 AHP10 Laptop (2025)
M2 1024GB M.2 NVMe ARDOR GAMING Ally AL1288 Drive (Non-System)
In my case, the error occurred after reinstalling Windows, when I erased the MBR volume on the drive (I seriously thought this was the problem, since I had officially created it).
After rebooting, it works stably for a while, but crashes when trying to download something from Steam. During this time, I extract all important files from it.
M.2 is 100% working - checked another device (PC) + UEFI
In Victoria, the drive shows a Good status.
The laptop's slots are also 100% working. I swapped drives, and the system drive is fine, but the Ardor keeps crashing.
