What is Error Code: 0×80070426?
This is an issue that occurs when the Software Licensing Service (Slsvc.exe) is not running when you are attempting to upgrade a Windows Vista computer and it will present you with the following error message:
An error occurred during the license installation
Error Code: 0x80070426
Error Information:
The service has not been started.
For assistance please try one of the following support contacts:
<http://merchantsupporturl>
merchantsupport@merchant.com
Tested Adware & Spyware Free
How to Fix This Error
To fix this error you will need to make sure the Software Licensing Service (Slsvc.exe) is running while performing the update.
To achieve this follow the steps as detailed below:
- Close the error message, and reboot your computer.
- To make sure that Slsvc.exe is running before you start the upgrade process, follow these steps:
- Click Start, type services in the Start Search box, and then click Services in the Programs list.
- If you are prompted for an administrator password or confirmation, type your password, or click Continue.
- In the Services control panel, verify that the Software Licensing service is Started.
- Use the download link from your purchase confirmation e-mail to start the upgrade process again.
Other Solutions
Improper maintenance to the Windows registry is often the underlying cause of most Windows errors, and any computer will benefit greatly from cleaning the registry for abundant and corrupted files on a regular basis.
The best way to go about this is to use a registry cleaner; these programs will automatically remove useless files and repair most errors with the click of a button.
We recommend using Reggenie because of its strong repair and optimization capabilities, you can download it here and get a free scan to check your computer for system related errors.
Posted in 
