Intel64 Family 6 Model 58 Stepping 9 Driver 【UHD】

While officially supported up to Windows 10, it is not on the official list for Windows 11 due to the lack of TPM 2.0 and modern security features.

If you have landed on this page, you have likely opened your Windows , navigated to an unknown device, and seen the cryptic identifier: Intel64 Family 6 Model 58 Stepping 9 . You may be wondering: What processor is this? Where do I find the driver? Why is Windows asking for a driver for my CPU?

The addition of the word “driver” is ambiguous because a CPU itself does not require a traditional device driver to function (it executes the first instructions from BIOS/firmware). However, two critical software components are often referred to as “drivers” in this context: intel64 family 6 model 58 stepping 9 driver

The number (9) refines the model further. Stepping refers to the revision level of the silicon die itself. Stepping 9 corresponds to the E1 stepping of Ivy Bridge. This was a later production stepping, arriving after earlier revisions (like C0 or D0). Stepping updates typically fix minor errata (design flaws) in the silicon, improve power management, or enhance stability at specific clock speeds. An E1 stepping Ivy Bridge processor is generally more mature and reliable than its earlier counterparts.

You are not alone. This specific string of numbers causes confusion for many system administrators, IT technicians, and everyday users. This article will dissect exactly what this identifier means, which Intel processor it corresponds to, why a "driver" might be missing, and—most importantly—how to resolve the issue safely. While officially supported up to Windows 10, it

In this comprehensive guide, we will decode this hardware ID, explain exactly which processor you have, reveal the truth about "CPU drivers," and provide a step-by-step solution to resolve the issue.

For an end-user or system administrator, encountering “Family 6 Model 58 Stepping 9” is rare outside of device manager logs or CPU diagnostic tools. But the presence of the correct driver is vital: Where do I find the driver

If your system is running smoothly—booting correctly, showing all cores in Task Manager, and not crashing—you can safely ignore or disable the unknown device entry. The mystery of the missing driver is almost always a false alarm caused by Windows' aggressive hardware detection misinterpreting a power management interface as a critical system device.

Stepping 9 typically represents the of Ivy Bridge, which was the final production stepping featuring bug fixes and power optimization.

This is the most literal interpretation. A CPU’s internal control logic—its microcode—can be patched at boot time by the OS. Operating systems (Windows, Linux, macOS) load a microcode update driver (e.g., mcupdate_GenuineIntel.dll on Windows, or the intel-microcode package on Linux) that applies the latest Intel-supplied patches. For Family 6 Model 58 Stepping 9, this driver is crucial. It addressed several post-silicon issues, including: