Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.
1846 Discussions

msr.sys signed by Microsoft?

HerveMat
Beginner
‎04-21-2026 06:27 AM
290 Views

Hi,

I'm using the https://github.com/intel/pcm API to retrieve MSR (power) counters on an x86 architecture running Windows.
The problem is that the MSR.sys file generated or downloaded from https://ci.appveyor.com/project/opcm/pcm/build/artifacts is not signed by Microsoft.
On recent versions of Windows, the suggested solution of signing the driver locally fails. Is there a way to obtain an official driver signed by Microsoft?

Thanks in advance,

0 Kudos

Link Copied

1 Reply
Thomas_W_Intel
Employee
‎07-24-2026 12:03 AM
44 Views

I'm very sorry. Unfortunately, providing a signed driver on Windows is beyond the scope of the PCM project.

Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.