Windows 10: Windows 10 KB4100347 (Intel update) reportedly breaks Broadwell-E overclocking

It’s no longer a surprise that some of the software updates are causing more harm than good on certain computers. It looks like Microsoft’s KB4100347 for Windows 10 that fixes a recent Spectre vulnerability is doing more harm than good on systems powered by Broadwell-E processor.

Microsoft released KB4100347 a while ago and the company updates the patch with support for more processors once in a while. This update is basically supposed to provide more mitigations against the Spectre Variant 2 vulnerability but according to reports from Reddit users, this patch has killed the overclocking on Broadwell-E processors.

“I just got around to installing a handful of updates from the past week on my computer, and upon rebooting I realised that the overclock on my Core i7-6800K was no longer applying,” a Reddit user explains.

Another thread on ASUS forum also claims that the patch might disable the overclocking changes that you made to your Broadwell powered PC. Upon checking, we discovered that a user has also pointed out the issue in a post on Microsoft’s forum.

It’s worth noting that the update was re-released on September 14 to include support for additional processors including Broadwell. According to Microsoft’s support document, the software giant has added support for the following processors:

• Broadwell Server E, EP, EP4S
• Broadwell Server EX
• Skylake Server SP (H0, M0, U0)
• Skylake D (Bakerville)
• Skylake X (Basin Falls)

“Intel recently announced that they have completed their validations and started to release microcode for recent CPU platforms related to Spectre Variant 2 (CVE 2017-5715 [“Branch Target Injection”]),” Microsoft explains.

At the time of writing this story, no workaround has been found except for the typical removing the update trick.

Your computer will install KB4100347 only when the system is ready and you’re not supposed to force the installation.

If you have this patch installed and you’re having issues with overclocking, you can always uninstall the update from Settings > Windows Update > Check for updates > View update history. On this screen, you would need to select the update from the history page and simply uninstall it.

At this point, it’s hard to determine how many PCs have been hit by the issues described above.

The post Windows 10 KB4100347 (Intel update) reportedly breaks Broadwell-E overclocking appeared first on Windows Latest

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[SOLVED] HELP! Suddenly cannot RDP from my Windows 10 Pro machine to my other Windows 10 Pro machine (started this morning-9/14/2018)

I just got an update on the workstation/client side!!

KB4100347: Intel microcode updates



Content provided by Microsoft

Applies to: Windows Server version 1803Windows 10, version 1803

Summary

Recent Changes:

• Intel Microcode Updates around the following products (CPUs) have been revised. We recommend to take this latest update to stay current:
  • Broadwell Server E, EP, EP4S
  • Broadwell Server EX
  • Skylake Server SP (H0, M0, U0)
  • Skylake D (Bakerville)
  • Skylake X (Basin Falls)

And that seemed to fix the problem!!

Jim

 

KB4100347: Intel microcode updates


For more details, see: KB4100347 Intel microcode updates for Windows 10 v1803 - Windows 10 Forums

 

problems with Spectre update KB4100347

So Windows Update downloaded the Spectre patch, KB4100347, earlier this week -- and it seriously screwed up my processor speeds. I've got an i7-6950, overclocked to 4250 on the front five cores and 4375 on the back five -- the first screenshot attached
shows the proper reading in HWMonitor.





After the patch, even though the overclocking settings in my BIOS haven't changed, everything's screwed up -- all the cores are clocked to 4375, except random ones (it changes depending on reboot) that are massively downgraded. In addition, the update breaks
Intel Turbo Boost Max, which does not boot, shows up as not installed in the device manager, and which will not reinstall or start (there's an error message saying there's a problem and a BIOS setting might need to be changed.





So I know an update like this is needed because of Spectre; but I also know that my processor number is not actually among those listed in

the knowledge base article. So is Windows downloading this update incorrectly? Is there another one that will actually work correctly with my processor? Is there something I have to do in the BIOS before I install this update? That's a problem because
Asus still hasn't released anything but a beta BIOS for my board. I currently have my computer rolled back and KB4100347 blocked, but that seems like a temporary fix given the serious nature of Spectre. Any advice would be welcome.