Windows 10: White Screen with "Do More With Your Voice" after Microsoft update

Have a Windows 10 Home Acer PC (on 1709) which did a Microsoft automatic update yesterday and then rebooted and now I have a white screen as below which sits in front of everything and it is impossible to close and the accept button is greyed out. Anybody know how to stop this from happening, can not even get to safe mode.





:)

 

White Screen

Hi Tracy,

To assist you better, kindly send us a screenshot and provide more details by answering the following questions:

• When did you start encountering the issue?
  
• Have you made any changes to your computer prior to the issue?
  
• Are you encountering this issue upon startup or after it wakes up from sleep?
  
• Are you getting any error message once the computer turns white and blank screen?

We look forward to your response.

 

Windows 10 white screen in Update and more (multiple issues)

Having multiple problems with my new laptop HP Envy, purchased in February with Windows 10 installed. Having been trying to fix for a week, and just seems to get worse. FYI, followed instructions elsewhere, and saw last installed update was KB 3140741
on 3/23.

• First problem I noticed is that I could open iTunes, but when I connected my iPad, iTunes couldn't see it.
• Next I noticed Backup and Update issues. I can get to Settings > Updates etc, but then it locks on a white screen, and I can't select Backup or Update.
  
• I can open File Explorer and see what I want to, but can't use right click to "Open in a new window," nor to create a New Folder.
• Was able to use my HP scanner this morning, but saving to file, the "save as" screen churned for 5 minutes on "working on it" before it listed the files in the last folder I saved to.
• And last, when I closed Edge browser this morning, I saw yet another new screen, a white square with "Just a moment..." With the circling dot. That went away after a few minutes, so I did a "shut down," and it churned on "Shutting down" for 25 minutes before
  returning to the lock then welcome screen. (FYI, had been using Chrome, but that's not working right either)

Help, please! Would appreciate simple instructions as to what I need to do to rescue my new laptop!