Amdryzenmasterdriver.Sys Cannot Load On This Device | Fix

Seeing a startup message that names a .sys file can throw you off. It feels like something “inside Windows” broke. In most cases, it’s simpler than that. Windows tried to load a driver, then blocked it by policy.

When the file is amdryzenmasterdriver.sys, the source is almost always AMD Ryzen Master. Ryzen Master is a tuning utility. To change CPU settings from inside Windows, it relies on a low-level driver. Windows Security can block that driver when Memory integrity is enabled.

You’ve got two clean paths. If you don’t use Ryzen Master, uninstall it and keep Memory integrity on. If you do use Ryzen Master, install the newest version first. If the driver still gets blocked, decide whether you want Ryzen Master’s tuning on this PC more than Memory integrity.

What This Driver Is And Why Windows Blocks It

Ryzen Master is designed to adjust CPU settings in real time. That’s convenient, but it also means it needs a driver with deep access. Windows treats drivers like this with extra scrutiny, since a vulnerable driver can be abused by other software running with admin rights.

Windows shows the “driver can’t load on this device” message when the Memory integrity feature prevents a driver from loading. Memory integrity sits under Core isolation in Windows Security. When it’s enabled, Windows enforces stricter checks that can stop certain drivers.

How To Confirm The Driver Comes From Ryzen Master

This check takes a couple minutes and helps you avoid chasing the wrong fix.

• Check Installed Apps — Open Settings, go to Apps, then Installed apps, and look for AMD Ryzen Master.
• Inspect The File Properties — Search for amdryzenmasterdriver.sys in File Explorer, open Properties, then review Digital Signatures if the tab exists.
• Run A Full Windows Scan — Open Windows Security, run a full scan, then restart the PC.

Fast Checks That Reduce Trial And Error

Before you change anything, figure out which of these situations you’re in. It keeps the steps short and avoids unnecessary toggles.

What You See	Likely Cause	Next Step
Pop-up at startup, Ryzen Master installed	Memory integrity blocks the Ryzen Master driver	Update or uninstall Ryzen Master
Pop-up at startup, Ryzen Master not installed	Old driver remnants are still registered	Clean up remnants, then reboot
You need Ryzen Master tuning	Driver build conflicts with Memory integrity	Install latest Ryzen Master, then decide on Memory integrity

• Install Pending Windows Updates — Open Settings, go to Windows Update, install updates, then restart.
• Check When The Warning Started — If it began right after a Windows update, finish updates first, then test again.
• Decide If You Use Ryzen Master — If you never tune from Windows, uninstalling is usually the cleanest end state.

Amdryzenmasterdriver.Sys Cannot Load On This Device Fixes For Windows 11

Start with the least disruptive fixes. Each step gives you a clear checkpoint. After every change, restart once and see whether the message returns.

Update Ryzen Master First

If you actually use Ryzen Master, update it from AMD’s Ryzen Master download page. This replaces older driver builds and is the best chance to keep Memory integrity enabled without further changes.

• Remove The Old Version — Open Settings, go to Apps, uninstall AMD Ryzen Master, then restart.
• Install The New Version — Download the newest Ryzen Master build from AMD, run the installer as administrator, then restart again.
• Test A Fresh Boot — Restart once more and confirm the startup warning is gone.

Uninstall Ryzen Master If You Don’t Need It

If Ryzen Master isn’t part of your day-to-day use, removing it is the simplest way to stop the driver from loading. Many people installed it once for a quick check, then forgot it was there.

• Open Installed Apps — Settings > Apps > Installed apps.
• Uninstall AMD Ryzen Master — Select it, choose Uninstall, then follow prompts.
• Restart The PC — A reboot clears the pending driver load attempt.

Turn Off Memory Integrity Only If You Choose That Trade

If you must keep Ryzen Master and the newest version still triggers the warning, Microsoft’s documented workaround for this class of error is turning off Memory integrity in Windows Security. That choice reduces a layer of driver hardening, so treat it as a deliberate setting for a system where Ryzen Master tuning matters.

• Open Windows Security — Use Start search, open Windows Security.
• Open Core Isolation Details — Select Device security, then Core isolation details.
• Toggle Memory Integrity Off — Turn it off, then restart the PC.

Fixing Amdryzenmasterdriver.sys Load Blocks On This Device After Updates

Sometimes the warning sticks around after you uninstall Ryzen Master. That usually means Windows still has a driver package registered, or a vendor image left remnants behind. The goal here is to remove the leftovers without breaking unrelated AMD drivers.

Use Windows’ Incompatible Driver List When It Appears

On some systems, Windows Security shows a link to review incompatible drivers. If it lists the Ryzen Master driver, uninstalling Ryzen Master and rebooting normally clears it. If the list appears empty, remnants can still exist.

Remove Registered Driver Packages With PnPUtil

This step is for people who are comfortable running a couple commands. It stays inside Windows tools and avoids third-party driver cleaners.

• Open Terminal As Admin — Right-click Start, open Windows Terminal (Admin).
• List Driver Packages — Run pnputil /enum-drivers and look for entries tied to Ryzen Master.
• Delete The Package — Run pnputil /delete-driver oemXX.inf /uninstall /force using the matching OEM INF, then restart.

Clean Reinstall Steps That Don’t Break Chipset Drivers

If your system also needs updated AMD chipset drivers, handle that separately from Ryzen Master. AMD’s own guidance is to uninstall chipset drivers through Windows Programs and Features, not through Device Manager or random removal tools.

Chipset drivers can smooth power management and device behavior after Windows changes. They do not replace Ryzen Master, but keeping them current can reduce weird side effects after updates.

• Download The Correct Chipset Package — Use AMD’s driver download page and select your chipset and OS.
• Install As Administrator — Run the chipset installer, follow prompts, then restart when it completes.
• Skip Device Manager Driver Deletions — Removing chipset components manually can cause messy device states.

Options If You Only Wanted Monitoring

Lots of people install Ryzen Master because it shows temps, clocks, and power draw in one place. If you are not tuning and you mainly want visibility, you can avoid this driver issue by using tools that don’t rely on a tuning driver.

Windows already gives some useful signals. Task Manager shows CPU speed and per-core usage. Firmware menus can show baseline temps and fan behavior, depending on your board.

• Use Task Manager For CPU Stats — Open Task Manager, go to Performance, then select CPU.
• Choose Read-Only Monitoring Tools — Pick utilities that focus on sensors and don’t push overclock features.
• Keep One Monitor Running — Multiple monitors can collide over sensor access and create odd readings.

Keep The Fix Stable Over Time

Once the warning stops, a few habits keep it from returning after the next update cycle. This is the part that saves you from seeing the same pop-up again after a big Windows build update.

Stick With One Clear Path

If you keep Memory integrity enabled, keep Ryzen Master uninstalled unless you truly need it for a short tuning session. If you keep Ryzen Master installed for tuning, keep it updated and accept that Memory integrity may need to stay off on that system.

Recheck After Major Windows Updates

Large feature updates can reset security toggles and rerun driver checks. After an update, open Windows Security and confirm Core isolation settings match what you chose. Then restart once and see whether the warning returns.

If the message you see is exactly “amdryzenmasterdriver.sys cannot load on this device,” treat it as a driver block signal, not a malware verdict. If you remove or update the source app and restart, the warning usually disappears.

And if the message keeps returning after you uninstall Ryzen Master, search Installed apps for other tuning utilities, remove them, restart, and test again. In most cases, once the leftover driver package is removed, the boot warning stops.