How to Stop the Meltdown and Spectre Patches from Slowing Down Your PC

How to Stop the Meltdown and Spectre Patches from Slowing Down Your PC

Here we can see, “How to Stop the Meltdown and Spectre Patches from Slowing Down Your PC”

What is Meltdown/Spectre?

Meltdown and Spectre have recently revealed vulnerabilities in Intel, AMD, Apple, and ARM CPU chips. These flaws result from a significant design problem in the chips in question, and the issue has necessitated a forced redesign of Windows, Mac, and Linux operating system software to mitigate the vulnerability and prevent attackers from exploiting it.

These holes were identified by researchers at Google’s Project Zero, a group dedicated to uncovering security problems before attackers can exploit them; no Meltdown or Spectre exploits are currently known to exist. Major IT corporations, such as Apple, Intel, and Microsoft, as well as open-source Linux developers, are now devoting significant resources to ensuring that their CPUs and operating systems are secure ahead of any hostile exploits.

The Meltdown and Spectre fixes for Windows will slow down your computer. You probably won’t notice on a newer PC running Windows 10. However, you may see a substantial slowdown on a PC with an older processor, especially if it’s running Windows 7 or 8.

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Here’s how to ensure that after you’ve secured your PC, it runs as quickly as possible.

Please, whatever you do, don’t skip installing the fixes. The Meltdown and Spectre attacks are both quite damaging. Patches are being released for Windows, macOS, Linux, Android, iOS, and Chrome OS to fix the issue.

Intel has also stated that it will collaborate with software developers to mitigate the performance impact over time. However, these are significant security flaws that must be addressed immediately.

That doesn’t mean you have to put up with the sluggishness.

Upgrade to Windows 10 (If You’re Using Windows 7 or 8)

  • There’s no way around it: the patch will work better if you’re on Windows 10. According to Microsoft, “some users may notice a drop in system performance” on “2015-era PCs with Haswell or [an] older CPU.”
  • However, they “expect most users to detect a drop in system performance” when using Windows 7 or 8 on the same older hardware.
  • In other words, Microsoft claims that with identical hardware, most consumers will perceive a slowdown on Windows 7 or 8, but not on Windows 10.
  • “Older versions of Windows have a bigger performance impact because legacy design decisions, such as all font rendering taking place in the kernel, generate more user-kernel transitions in Windows 7 and Windows 8,” Microsoft notes.
  • Windows 10 is significantly newer software, and it includes numerous optimizations that Windows 7 and 8 do not.
  • Although Microsoft is referring to Intel processors, there may be some lag if AMD processors are used. Although the Meltdown repair does not affect AMD computers, the Spectre fix does. In addition, we haven’t seen any AMD system performance benchmarks yet, so we don’t know how performance has improved.
  • Upgrade to Windows 10 instead of avoiding or blocking the patch. While the free upgrade time for Windows 10 has ended, there are still methods to get it for free.
  • There are ways to make Windows 10 less unpleasant if you don’t like it. For example, you may either take more control of Windows 10’s automatic updates or set your “Active Hours” to prevent them from bothering you.

If you want, you can hide all those annoying adverts in Windows 10 and make it appear more like Windows 7. You don’t even need to use the Windows Store—stay on the desktop and enjoy a new Windows operating system that’s faster than Windows 7.

Upgrade Your Hardware

With the patch, modern PCs—defined as “2016-era PCs with Skylake, Kabylake, or [a] newer CPU”—perform better than older PCs. “Benchmarks show single-digit slowdowns,” Microsoft adds, “but we don’t expect most users to perceive a difference because these percentages are reflected in milliseconds.”

  • This is due to the PCID (Process-Context Identifiers) feature on these Intel CPUs, which aids the patch’s performance. Without this feature, additional work must be done in software, which slows down the process.
  • If you want to see if your system has the functionality that speeds up the patch, we recommend downloading and running the InSpectre application from Gibson Research Corporation. It will also inform you whether or not your computer is safe from Meltdown and Spectre.
  • If “Performance: GOOD” appears, you have a modern PC with the necessary hardware and should not experience any perceptible slowdown. If you don’t, your PC is probably old, and you’ll notice some extra latency. (However, if you haven’t already done so, you can considerably speed things up by updating to Windows 10.)
  • If your PC lacks the necessary hardware features and is running slowly, upgrading to modern hardware is the only option to stay secure and speed things up.

The slowdown is substantially reduced on modern CPUs. If you want to save money, consider purchasing used hardware and selling your current items.

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Disable the Protection in the Windows Registry, If You Insist

Windows allows you to disable the Meltdown and Spectre protection after applying the patch, leaving your machine open to these severe attacks but removing the performance cost.

Warning: This is something we strongly advise against. You shouldn’t notice any slowdowns if you’re running Windows 10 on recent hardware. For the most part, even if you’re running Windows 10 on an older CPU, the slowdown should be modest. Furthermore, if your Windows 7 or 8 PC is considerably slower, upgrading to Windows 10 is the best option. Meltdown and Spectre are major security weaknesses that could be exploited by code that runs on a web page in your browser. You don’t want to employ a susceptible system.

  • Microsoft, on the other hand, made these registry modifications available for a reason. As they describe it, IO (input-output) applications on a Windows Server system can be prolonged.
  • “You want to be careful to analyze the danger of untrusted code for each Windows Server instance, and balance the security against performance tradeoff for your environment,” Microsoft writes of Windows Server systems. To put it another way, you might wish to turn off the patch on some server systems if you’re confident they won’t run malicious code.
  • Remember that these flaws could be exploited by JavaScript code running in a web browser or code running inside a virtual machine. The standard sandboxes that limit what this program may do won’t safeguard your PC completely.
  • The InSpectre tool, as we described earlier, can be used to disable Meltdown or Spectre protection. Right-click the InSpectre.exe file and select “Run as Administrator” to disable Meltdown or Spectre protection.
  • Toggle protection on or off by clicking the “Disable Meltdown Protection” and “Disable Spectre Protection” buttons. After making this update, restart your computer. When you relaunch InSpectre and scroll down the content in the box, you’ll notice a bullet point indicating that the registry protection has been disabled.

If you change your mind later, you can re-enable protection with the same buttons.

If you choose, you can disable the protection in the registry yourself. First, run the procedures listed on this Microsoft support page under “To disable this repair.” The instructions are for Windows Server, but they will also disable the fix on other Windows versions. After making changes to the registry, restart your computer.

The Get-SpeculationControlSettings PowerShell script can be used to verify that the patch is activated. If you change your mind and want to re-enable the protection in the future, follow the procedures on the Microsoft website under “To enable the remedy.”


I hope you found this information helpful. Please fill out the form below if you have any queries or comments.

User Questions:

  1. Does Spectre and Meltdown have an impact on performance?

Since the discovery of Spectre and Meltdown in January 2018, we’ve known that addressing both security flaws together will hurt raw performance. Disabling boosts overall performance by 20% (for the 7980XE), 24.8 percent (8700K), and 20.5 percent (for the 7980XE) (6800K).

  1. Is Spectre a threat to my CPU?

Spectre affects almost every system, including PCs, laptops, cloud servers, and smartphones. In addition, all modern CPUs capable of maintaining many instructions in flight are theoretically vulnerable, which means that all popular operating systems, including Windows, Linux, and macOS, are at risk.

  1. Will Meltdown and Spectre have an impact on AMD?

Meltdown, also known as Spectre version 3, affected both Intel and ARM processors. However, specter concerns AMD and Arm processors and practically all out-of-order CPUs that use speculative execution to boost performance.

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  1. Anyone disables their Meltdown and Spectre patches for max CPU performance?

Anyone disable their Meltdown and Spectre patches for max CPU performance? from PUBATTLEGROUNDS

  1. Meltdown and Spectre Vulnerabilities Megathread

Meltdown and Spectre Vulnerabilities Megathread from buildapc