Windows 10: how to restore windows default licenc

hi there,I bought laptop which had windows pre installed license key and later it has been changed and currently showing me to activate license now I want to go back to original default license attached here is the key of original version and i try to add it in change 0 character is not accepting.so how can you help me?

:)

 

reset system folder (windows) permission back to default / original state

Hi,

Welcome to Microsoft community.

I would suggest you to try the following steps:

• Click "Search" and type File explorer options,Select it from the options
  
• Click on Restore defaults.
• Click Apply and OK.

Thanks,

 

Windows XP PRO error after restore

System restore is handy when it works like it did for me 2 days ago saving the need to reinstall all of my software as well as windows, id suggest using norton Ghost 12 for an excellent system restore feature.

 

In Windows 10 how do I return the font on my desktop icons to the default setting?

Hello,

Welcome to the Microsoft Community.

I would suggest you to follow the below steps and check if you are able to restore to default font settings in windows 10.

• 
  Type fonts in the search and press enter
  
• 
  Click on Font settings
  
• 
  Click on Restore default font settings.
  

Keep us posted if you face any issues on windows in future. We will be glad to help you.