Windows 10 upgrade

Leaving my desktop running windows 10 to update to the latest it somehow went back to windows 7 when the update was finish keeping windows 10 taskbar but with limited functions, no start menu, internet explorer/windows edge was not downloaded only Chrome was remain tinker with it for a while then I did a clean installation using widows upgrade assistance but when it reaches express setting it keeps looping back to express setting when I click on next.
The update is working fine on two of my laptops.

 

Have a look through these links: Windows 10 update problems - Google Search

 

Thanks for the info but not working for me because of the looping back to express setting

 

Did not back up data this happen while windows was updating to the latest update

 

Thanks but could not back up because there is nothing on screen for me to click on so I reinstall windows 7 then try to reinstall windows 10 but it reach to a point where it could not read memory and the screen were flickering so I shut down computer and restart and for quite sometime it has been undoing the changes telling me not to shut down until it is finish.

 

have gone back to widows 7 will try windows 10 later on