Windows 10: Windows can't boot after update to windows 10 20h2

I got a message to update my dell pc to windiws 10 versiin 20H2. After downloading and installing, the system refused to boot. The message i get is , secure boot violation invalid signature detected check Bios setup. Any help on how to revive my pc?

:)

 

Windows 10 Update

Well just noticed a pretty large one pop up coming in at 914MB, seems it makes some pretty serous updates.

KB3172985
Cumulative update for Windows 10 Version 1511 and Windows Server 2016 Technical Preview 4: July 12, 2016

This security update includes improvements and fixes in the functionality of Windows 10 Version 1511 and Windows Server 2016 Technical Preview 4. It also resolves the following vulnerabilities in Windows:

• 3175677 MS16-094: Security update for secure boot: July 12, 2016
• 3174060 MS16-093: Security update for Adobe Flash Player: July 12, 2016
• 3171910 MS16-092: Security update for Windows Kernel: July 12, 2016
• 3170048 MS16-091: Security update for .Net Framework: July 12, 2016
• 3171481 MS16-090: Security update for Kernel Mode Drivers: July 12, 2016
• 3170050 MS16-089: Security update for Windows secure kernel mode: July 12, 2016
• 3170005 MS16-087: Security update for the Microsoft Print Spooler: July 12, 2016
• 3169999 MS16-085: Cumulative security update for Microsoft Edge: July 12, 2016
• 3169991 MS16-084: Cumulative security update for Internet Explorer: July 12, 2016

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.

 

Windows 10 USB boot

Hi there, am not a windows 10 expert. I have a pc in the bedroom on windows 10, I messed up the bootloader trying to fix the xp on that system.

System wont boot, trying to repair via win 10 usb installer.

Downloaded the media creation tool to install windows 10 installer on usb stick. Not compatible with a host of usb sticks I have. Tried the usb sticks that others use, but I think they use rufus; as the media creation tool by win 10 does not detect the usb stick.

So quick question, the win10 machine i am trying to repair the bootloader is a win7 upgraded to win10.
If i were to use the usb win10 installer to "repair installation" does the version of the iso downloaded via the media creation tool matter?

There is three options:
Windows 10
Windows 10 Home
Windows 10 N

Also is there a step by step instead of using rufus as I want to try an alternative method of creating a usb win 10 installer. Preferably with more compatibility.

System is a asus sabertooth 990 (r2?) with AMD phenom X 6.

Also is there any other software I can load onto the usb that can repair the bootloader easily?
That would be the ideal alternative. Thanks