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“Signing with a test key” + “boot Windows in test mode” = standard procedure for testing kernel drivers.
That said, there is some incorrect information in the linked article.
Yes, 64-bit Vista and Win7 *require* signed drivers (and this requirement cannot be disabled), but 32-bit systems do not by default.
Also, the statement “…developers have to pay Microsoft to receive verified certificates…” is misleading. Yes, driver signing certificates *do* cost money, but they’re not purchased from Microsoft. There used to be a few places to get signing certs, but I think Verisign is the only source now. Unfortunately, they’re expensive ($499/year).
This onerous & expensive requirement effectively eliminates the possibility of creating open-source drivers for modern versions of Windows. Pity.
I am running Windows 7 64 bit and had drivers loaded and working in a matter of minutes using the Driver Signature Enforcement Override tool mentioned above.
I had also tried setting the Group Policy to ignore unsigned drivers but this didn’t seem to work for me.
I also wanted to verify that the Driver Signature Enforcement Override tool worked with my Win7 64.