How To Fix Windows Error 0x800703E6

RECOMMENDED: Click here to fix Windows errors and optimize system performance

The error 0x800703E6 usually occurs under different Windows computer versions. This error is usually caused by corrupted registry keys, corrupted or missing DLL files, obsolete drivers, Windows update errors, missing or corrupted system files, or by viruses, Trojans or other destructive programs.

0x800703E6 error

This problem prevents Windows from accurately verifying the license for this computer. The computer then saves the settings and the only option is to stop them.

The Windows 0x800703E6 error code is a problem that appears as a potential risk for your PC. You should find a good way to correct this error, otherwise serious computer problems could occur, such as a blue screen error, system failure or computer shutdown. Overall, it is important to fix the Windows 0x800703E6 error.

Check the Windows firewall


  1. Open the search field and enter “Firewall.cpl”.
  2. Click on the Windows Firewall
  3. Click Enable or disable the Windows firewall.
  4. In the Private Network setting, select Disable Windows Firewall (not recommended).
  5. The same applies to the public network setting and press ok.
  6. Once the problem is solved, you must activate the Windows firewall.

Apply system restore

system restore

A quick way to correct some computer errors is to use the system recovery utility. This is an integrated Windows utility that allows you to restore your PC to a certain point where it has worked properly.

January 2021 Update:

We now recommend using this tool for your error. Additionally, this tool fixes common computer errors, protects you against file loss, malware, hardware failures and optimizes your PC for maximum performance. You can fix your PC problems quickly and prevent others from happening with this software:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


Start with Start->Programs->Accessories->System Tools and then open System Restore.

Manual modification of your registry

registry editor - Another installation is in progress in Windows 10

The computer registry is one of the most important components of the Windows operating system. If you use your computer regularly and install new programs, the computer registration will be corrupted and you will receive the error message with the blue screen. You can fix these errors by manually editing the Windows registry, but it is a complicated and tedious process that only advanced users and professionals can perform correctly.

Update the drivers


Using Windows Update is the safest way to get driver updates because the packages available through this channel have been verified and signed by Microsoft.

To automatically download and install driver updates, do the following:

  1. Open Settings.
  2. Click on Update and Security.
  3. Click on Windows Update.
  4. Click on the Check for Updates button.

When the hardware manufacturer publishes its updates via the Windows Update service and a new version becomes available, it is automatically downloaded and installed on your computer.

The only disadvantage of using this process is that it can take time for manufacturers to make a new update available through this channel, unless it is Microsoft hardware.

RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance