Symptomen
0x80070643 - Fatal error during installation
You may experience error code 0x80070643 when reinstalling Intel Thunderbolt Controller Driver on your computer.
![Intel Thunderbolt software error 0x80070643](https://supportkb.dell.com/img/ka06P000000U7RVQA0/ka06P000000U7RVQA0_en_US_3.jpeg)
Figure 1: Intel Thunderbolt software error 0x80070643
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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.
![Locate Thunderbolt(TM) Controller under System Devices in Device Manager](https://supportkb.dell.com/img/ka06P000000U7RVQA0/ka06P000000U7RVQA0_en_US_1.jpeg)
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.
![Delete the driver software for this device on confirm uninstall](https://supportkb.dell.com/img/ka06P000000U7RVQA0/ka06P000000U7RVQA0_en_US_2.jpeg)
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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