How to resolve NVIDIA driver issues including error codes 43 and 45

Updated: 10-Feb-2026 | Answer ID: 1632
This answer will show you how to resolve NVIDIA driver issues including error codes 43 and 45.

Effective February 3, 2026, Razer Synapse 3 will no longer receive updates or support cloud services. After this date, cloud syncing of configurations across PCs using the same Razer ID will be disabled.

Note: Your installed devices will continue to be configurable in Razer Synapse 3. However, if you uninstall these devices completely, you will need to upgrade to Razer Synapse 4 to continue customization.

Download Razer Synapse 4 and migrate your existing Razer Synapse 3 profiles using the Profile Migration Tool to retain access to your configurations. See How to migrate your Razer Synapse 3 Profile to Razer Synapse 4 for instructions.

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Getting NVIDIA drivers for your Razer Blade

Find NVIDIA driver updates via Windows Update. See How to get the latest software and driver updates from Windows for more details.

If you just updated Windows, please install the "Optional updates" under Settings > Windows Update > Advanced options.

Troubleshooting display issue (Error 43 and Error 45)

In some cases, the display issue can be resolved by updating or reinstalling the display driver.

  1. Right-click on the "Start".

  2. Select "Device Manager".

  3. Look for an exception in "Display adapters".

    Device Manager window

  4. Right-click and select "Properties".

    Display adapters properties window

 

For Error Code 43

  1. Right-click on the NVIDIA device under Device Manager.

  2. Select "Uninstall device".

    Device Manager window

  3. Tick "Delete the driver software for this device".

  4. Click on "Uninstall".

    Uninstall device dialog box

  5. Restart your Razer Blade. Windows will automatically detect and reinstall the drivers upon reboot.

 

For Error Code 45

  1. Go to "Action" under Device Manager.

  2. Click on "Scan for hardware changes".

    Device Manager action tab pane

  3. Follow the on-screen instructions.

  4. If NVIDIA drivers are installed, uninstall the drivers in "Device Manager".

  5. Tick "Delete the driver software for this device".

    Uninstall device dialog box

  6. Restart your Razer Blade. Windows will automatically detect and reinstall the drivers upon reboot.

Troubleshooting blue screen errors

For a guide on how to resolve the Blue Screen of Death (BSOD), see How to resolve the Blue Screen of Death (BSOD) error on a Razer Blade laptop.

Using NVIDIA GPU for primary display

Note: Some Razer Blade Pro models allow using discrete NVIDIA GPU onboard for primary display. To see if your Razer Blade supports this, do the following:

  1. Launch Razer Synapse 3.

  2. Go to SYSTEM > PERFORMANCE > GPU MODE.

  3. Select "Dedicated GPU only".

    Razer Synapse 3 performance tab window

     

    Note: While on "Dedicated GPU only" mode, battery use is higher.

Downloading the NVIDIA Control Panel

NVIDIA Control Panel application is no longer included in the NVIDIA driver package. However, you can get it at Microsoft Store.

Learn more about NVIDIA drivers for Windows 10.

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