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Hi Isabella Brown,
Plugging in the unpowered USB hub causes a sudden power draw (voltage drop) on your motherboard. This electrical spike freezes the Windows USB controller driver (USBXHCI.SYS). Because the driver hangs and refuses to release processor time, the Windows kernel triggers a DPC_WATCHDOG_VIOLATION (Bug Check 0x133) blue screen to protect your hardware from damage. To fix,
1/ Download and install the latest motherboard chipset drivers and UEFI/BIOS from the manufacturer's website to improve power regulation. Go to Control Panel > Power Options > Change Plan Settings > Change Advanced Power Settings. Expand USB settings and set USB selective suspend setting to Disabled. This ensures a constant voltage to your USB ports.
If the blue screen persists, the unpowered hub is drawing too much initial current for your motherboard's safety limits. You will need to replace it with a powered USB hub that plugs into a wall outlet.
Hope this answer has brought you some useful information. If it did, please hit “accept answer”. Should you have any questions, feel free to leave a comment.
VPHAN