Symptoms

0x80070643 - Fatal error during installation You may experience error code 0x80070643 when reinstalling Intel Thunderbolt Controller Driver on your computer. Figure 1: Intel Thunderbolt software error 0x80070643 If you need additional help with Thunderbolt issues, check out these resources: USB-C and Thunderbolt Docks Not Recognized by the ComputerHow to Install or Update the Thunderbolt Controller Driver and Firmware Using Dell Command | Update on Dell ComputersIntel Thunderbolt Controller Driver Installation Failed on Intel Generation 12 Processor System with Windows 11

Cause

N/A

Resolution

Reinstall Intel Thunderbolt Controller Driver Step 1: Uninstall Intel Thunderbolt Controller Driver from Apps & Features Press Windows Key + X, then click Apps and Features.Search Thunderbolt.Click Intel Thunderbolt Control Center and then click Uninstall.Allow the uninstallation to complete.Reboot your computer. Step 2: Uninstall Thunderbolt(TM) Controller from Device Manager Press Windows Key + X, then click Device manager.Once in Device manager window, under System Devices, look for Thunderbolt(TM) Controller.Right-click Thunderbolt(TM) Controller and click Uninstall. Figure 2: Locate Thunderbolt(TM) Controller under System Devices in Device Manager Ensure to select Delete the driver software for this device, then click Uninstall to confirm uninstall. Figure 3: Confirmation prompt to Uninstall Thunderbolt(TM) Controller from Device Manager Step 3: Install Intel Thunderbolt Controller driver from Dell Drivers & Downloads Browse to Intel Thunderbolt Controller driver.Click Download and save the file to your computer.Open File Explorer, and browse to the location where the downloaded file is saved.Double-click the Intel Thunderbolt Controller driver setup file and follow the on-screen instructions to complete the installation process.

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