How to Fix Windows 11 Memory Integrity Errors: Blue Screens & Slow Boot Guide

Few things are more frustrating than constant blue screen errors or painfully slow startups on Windows 11. One of the most common culprits is a security feature called Memory Integrity (also known as Core Isolation). While this feature is designed to protect the Windows kernel from malware, it can sometimes fail to activate or conflict with system drivers and hardware settings. When that happens, your PC may refuse to boot properly, enter recovery mode, or display warnings in the Windows Security app that Memory Integrity is turned off—leaving your device more vulnerable.

This guide walks you through every proven solution to fix Memory Integrity errors in Windows 11, from driver updates to BIOS settings. By the end, you’ll have the tools you need to restore system stability and keep your computer secure.

1. Update or Remove Incompatible Drivers

Step 1: Check Windows Security for Conflicts

• Open Windows Security → Device Security → Core Isolation.

• If Memory Integrity is off, look for a Review Incompatible Drivers option.

• Review the list of drivers blocking the feature.

Step 2: Identify Problematic Drivers

If details are missing, run the following command in Command Prompt (Admin):

dism /online /get-drivers /format:table

This displays all installed drivers so you can locate the one causing conflicts.

Step 3: Update the Driver

• Open Device Manager.

• Select View > Devices by Driver.

• Find the device using the incompatible driver.

• Right-click → Update Driver → Search automatically for drivers.

If Windows doesn’t find an update, download the latest driver directly from the manufacturer’s website.

Step 4: Remove the Driver (If Needed)

If updating doesn’t help, remove the driver with:

pnputil /delete-driver <PublishedName> /uninstall /force

Replace <PublishedName> (e.g., oem58.inf) with the driver’s exact name. Restart your PC to allow Windows to reinstall a compatible version.

2. Install the Latest Windows Updates

• Go to Settings > Windows Update → Check for updates.

• Install all available updates, including optional driver and firmware updates.

• Restart and recheck if Memory Integrity can now be enabled.

3. Remove Residual or Hidden Drivers

Old or hidden drivers may continue causing conflicts.

Step 1: Show Hidden Devices

• Open Device Manager → View > Show hidden devices.

• Look for faded or warning-marked devices.

Step 2: Uninstall Problematic Drivers

• Right-click → Uninstall device.

• Check Delete the driver software for this device if available.

Step 3: Remove Leftover Files

• Navigate to C:\Windows\System32\drivers.

• Carefully delete leftover files tied to removed drivers (avoid system files).

4. Verify Hardware Virtualization Settings

Memory Integrity requires virtualization.

• Restart your PC and enter BIOS/UEFI (press Del or F2 during startup).
• Enable Intel VT-x or AMD-V under virtualization settings.
• Save changes and reboot.

5. Repair System Files

Corrupted files can prevent Memory Integrity from working.

Step 1: Run System File Checker

sfc /scannow

Step 2: Run DISM

DISM /Online /Cleanup-Image /RestoreHealth

Restart your PC afterward.

6. Check RAM Stability and BIOS Memory Profiles

Overclocked or unstable RAM can crash Windows when Memory Integrity is active.

• Enter BIOS and disable XMP/AMP profiles, reverting RAM to default speeds.
• Run Memtest86+ for multiple passes to rule out faulty memory.
• If necessary, lower RAM speeds or replace defective modules.

Some users report disabling SVM/virtualization features in BIOS reduces crashes—but only use this as a last resort, since it limits Windows security features.

7. Enable Memory Integrity via Registry (Advanced Users)

If the toggle is grayed out:

• Back up your registry and create a restore point.
• Open Registry Editor and navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity

• Double-click Enabled → set to 1 → click OK.
• Restart and check Windows Security.

8. Special Considerations for Gamers

Games with strict anti-cheat systems (e.g., Valorant with Riot Vanguard’s vgk.sys) may conflict with Memory Integrity. In these cases, you may need to choose between enabling Memory Integrity or running the game, as both may not coexist.

9. Advanced Troubleshooting

• Analyze minidump files in C:WindowsMinidump with BlueScreenView to detect hardware or driver issues.
• If problems persist, perform a repair install of Windows 11 using the Media Creation Tool (keeps files and apps intact while replacing system files).

Conclusion

Memory Integrity is one of Windows 11’s most important security defenses, but conflicts with drivers, BIOS settings, or hardware can turn it into a source of frustration. By following the steps above—updating or removing incompatible drivers, enabling virtualization, repairing system files, and monitoring hardware—you can resolve blue screen errors and restore smooth startup performance.

Staying proactive with Windows updates, driver maintenance, and BIOS checks will help you prevent future issues and keep your system secure. With Memory Integrity properly enabled, you’ll enjoy both better protection and improved stability on Windows 11.