Mtp Device Driver Windows 11 «8K»

I plugged the device into a clean Windows 11 VM with Secure Boot on. No test-signing mode. The driver, now properly signed with an EV certificate, installed silently. A notification popped up: “Device is ready. Open with File Explorer.”

Testing required disabling Secure Boot and enabling test-signing mode. Windows 11’s Hypervisor-protected Code Integrity (HVCI) would block my driver unless it was compatible with Memory Integrity. I rewrote all pageable code sections to stay in non-paged pool. Finally, the driver loaded without triggering a BSOD. mtp device driver windows 11

The device sat on my bench—an experimental portable storage unit with a custom media transfer protocol (MTP) stack. On Linux and macOS, it mounted instantly. On Windows 11, it was a ghost. I plugged the device into a clean Windows

I clicked. The drive letter appeared. I copied a file. No crash. No delay. A notification popped up: “Device is ready