Error 0x80070666 when installing Microsoft Visual C ++ on Windows 11/10

Windows applications that are being developed on the Microsoft Visual Studio development platform expect some DLLs (dynamic link libraries) to be present on the system. For example, Microsoft Visual C ++ 2008 Redistribute, Microsoft Visual C ++ 2015 Redistribute, and so on. Applications will not run when these libraries are missing.. Some users reported seeing problems trying to download and install these libraries.. Users see an error when they accept the license and try to install the library on the system. The full error message is as shown below:

If you are faced with the problem, don’t panic. In this article, we have compiled some fixes to help you resolve error 0x80070666 when installing Microsoft Visual C ++ library packages.

Solution 1: uninstall the current package

1. Open the To run dialog using Windows and R.

2. Write «appwiz.cpl ” and press Get into.

3. In the program and features window that opens, locate the Microsoft Visual C ++ Redistribution package.

4. Right-click the package and select Uninstall

5. Follow the instructions on the screen and complete the installation process.

6. Restart your PC.

7. Now try to install the package again.

Solution 2: run the Fix-It tool

1. Click the Download Tool Fix-It Link.

2. Click the Download the troubleshooter button.

3. Find the downloaded file on your PC and double-click the executable file.

4. In the window that appears, click the Advanced option as shown below.

5. Make sure Apply repairs automatically the check box is checked and click the next button.

6. Click Installing.

7. Choose the problem package.

8. The system will suggest possible solutions. Try both and see what works for you.

Check if this works, if not try the next solution.

Solution 3: install pending updates

1. Open the To run Dialog using the keys Windows and R.

2. Type the following command and press Get into.

ms-settings:windowsupdate

3. In the window that appears, click the Check for updates.

4. Once the updates are installed, reboot the system.

Solution 4: repair the package from the command prompt

1. Open the To run Dialog using the keys Windows and R.

2. Type cmd and press Get into.

3. In the command prompt window that opens, copy and paste the following commands one after the other.

cd C:Users%username%Downloads
vc_redist.x64.exe /uninstall

4. You will see a pop-up window, click the Repair button.

5. Follow the instructions on the screen and complete the repair process.

That is all.

We hope this article has been informative. Thank you for reading.