How to Fix ERROR_RANGE_NOT_FOUND

The ERROR_RANGE_NOT_FOUND with error code 644 (0x284), and message The specified range could not be found in the range list, appears in Windows computers when a program or system process tries to access a resource, like memory or a range, that is either not available or doesn’t exist. The reasons for the BSoD could be an issue with configuration settings or registry errors.

How can I fix ERROR_RANGE_NOT_FOUND?

Before moving to the advanced steps, make sure you perform these simple ones first:

• Restart your computer as it could help you fix temporary system errors
• Press Windows + X and select Event Viewer and look for errors related to memory, or hardware conflicts, then head to BIOS settings and check the memory-related settings
• Ensure there are no pending Windows updates

1. Update/reinstall device drivers

1. Press Windows + R to open the Run window.
2. Type devmgmt.msc and click OK to open the Device Manager app.
3. You will see the list of system components, expand each cateogry one by one to locate a device with yellow triangle and an exclamation mark inside it.
4. Once located, right-click the driver and select Update driver from the context menu.
5. Select Search automatically for drivers, then follow the on-screen instructions to complete the process. If there are more than one problematic drivers, repeat the steps.

If Windows fails to find the latest version of the driver, you can head to the device’s manufacturer’s website, then download & install the driver. Alternatively, you can get a reliable third-party driver updater tool to ensure all the device drivers are up to date.

If updating the driver didn’t fix the ERROR_RANGE_NOT_FOUND issue, follow these steps to reinstall the driver:

1. Relaunch the Device Manager and right-click the problematic driver and select Uninstall device.
2. Click Uninstall again.
3. To reinstall, you can either restart your computer, or you can go to Action>Scan for hardware changes.

2. Run SFC & DISM scans

1. Press the Windows key, type cmd in the search bar and select Run as administrator from the list of options to launch Command Prompt with administrator privileges.
2. To repair or restore the damaged or missing system files, type the following command and hit Enter: sfc /scannow
3. Wait for the scan to complete, copy & paste the following command to repair the system image via Windows Update, then hit Enter: Dism /Online /Cleanup-Image /RestoreHealth
4. Wait for the command to be executed, then restart your computer to let the changes take effect.

3. Repair the registry files

1. Press Windows + R to open the Run window.
2. Type regedit and click OK to open the Registry Editor app.
3. Before making changes, go to File, then select Export, then rename and save the .reg backup file at an accessible location.
4. Now, navigate to this path: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
5. Check the registry entries related to drivers that are causing the ERROR_RANGE_NOT_FOUND.
6. If you found any issue, you can try to delete the key, or reinstall the driver related to it, and restart your computer.

If you are confused what to do, you can opt for a trusted registry cleaner to restore the corrupted or missing entries and fix the BSoD error.

4. Reinstall the affected app

1. Press Windows + I to launch Settings.
2. From the left pane, select Apps.
3. Click Installed apps.
4. From the list of apps, locate the affected app, click the three-dot icon and select Uninstall.
5. Click Uninstall again to confirm.
6. Go to the app’s official website or Microsoft Store to reinstall the app.

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5. Restart your PC in the clean boot environment

1. Press Windows + R to open the Run console.
2. Type msconfig and click OK to open the System Configuration app.
3. Go to the Services tab, place a checkmark next to Hide all Microsoft services, and select Disable all.
4. Switch to the Startup tab, and click Open Task Manager.
5. In Task Manager, select Enabled items one by one and click Disable, then close the window.
6. Back on the System Configuration window, click Apply, then OK.
7. Click Restart to reboot your PC and save the changes.

Once the PC is in clean boot mode, enable the third-party services and startups one by one to check what is causing the BSoD to narrow down the problem. If none of the services and startup items are responsible, reverse engineer these steps to restart your PC in normal mode.

6. Restore your computer settings to a previous point

1. Press Windows + R to open the Run window.
2. Type sysdm.cpl and click OK to launch the System Properties window.
3. Go to the System Protection tab and click the System Restore button.
4. Select Choose a different resort point on the System Restore wizard and click Next.
5. You will get a list of available restore points, select the oldest one or the one created before you encountered ERROR_RANGE_NOT_FOUND for the first time, and click Next to proceed.
6. Click Finish.

Windows will restart, and restore your system settings to the selected point. However, if it fails, and you get System Restore did not Complete Successfully message after the restart, the corrupted system files or conflicting drivers on your device are to be blame; check out this guide to learn more.

7. Reinstall Windows (Last resort)

Check these prerequisites before you begin:

• A reliable internet connection and if using a laptop, connect it to a charger
• Keep your Microsoft account credentials handy
• A blank USB drive with at least 8 GB of storage. Make sure you have no content on the USB drive, as it will be deleted
• A list of essential apps, their licenses, and credentials ready
• Back up your important files including files, documents, videos, photos to an external storage or cloud

Create an installation media

1. Download the Windows 11 media creation tool on another device or affected PC if it is working.
2. The mediacreationtool.exe will be downloaded, double-click it to open and click Yes on the UAC prompt.
3. On Windows 11 setup wizard, click Accept to agree to the license terms.
4. Remove the checkmark next to Use the recommended options for this PC and choose the Windows edition and language.
5. Plug in the USB device; select the USB flash drive and click Next.
6. The USB device will be formatted, and Windows installation files will be added to the drive. Click Finish and safely eject the flash drive if you are performing steps on another PC.

Clean install Windows

1. Connect the USB flash drive into the affected computer, press the Windows key, click Power, then press & hold the Shift key while selecting Restart.
2. Once your device is in Windows RE, click Use a device on the Choose an option screen.
3. Choose the USB drive from the following page.
4. Your device will boot up and you will get the Windows setup dialog box, choose Language, Time and Keyboard method, then click Next.
5. Click Install now.
6. You can enter the product key at the next screen, or click I don’t have a product key, and then select Next.
7. On the Select the operating system you want to install page, choose the OS and click Next.
8. Click Accept on the next page.
9. Select Custom: Install Windows only (advanced).
10. Choose the drive that you want to choose to install Windows.

Now, the installation will begin. Make sure your PC stays on until the process is complete. Once Windows is installed, your PC will restart, and you must follow the prompts to complete the setup. You can then login to your computer and go to Settings>Windows Update>Check for updates, download & install if available.

In conclusion to fix ERROR_RANGE_NOT_FOUND, you can ensure Windows Updates are installed, run System File Checker and DISM scan to repair system files, repair the registry files, reinstall the affected app or restore your PC to an older version. If nothing worked for you, then you can opt to reinstall the operating system.

If you have any questions or suggestions about the BSoD error, feel free to mention them in the comments section below.