Microsoft guidance for applying Secure Boot DBX update (KB4575994) This article has been deprecated. Previously, this article discussed how to manually apply Secure Boot Forbidden Signature Database (DBX) updates to the operating system. This process is no longer necessary. DBX updates are now delivered through the monthly servicing updates.

To resolve this issue, follow these steps: Open the Hyper-V Manager, right-click the VM, and then select Settings. In the navigation pane, select Security. In the details pane, select Microsoft UEFI Certificate Authority in the Template list. In the details pane, click to clear the Enable Secure Boot check box, and then click OK.

Find the Recycle Bin. If your desktop shows no icons at all, right-click (or press and hold) the desktop and select View. If Show desktop icons has no checkmark, click it to add one. If that doesn't work, try this: Select Start > Settings > Personalization > Themes > Desktop icon settings. Make sure the check box for Recycle Bin is checked ...

For more information about the PXE boot process, visit the following Microsoft websites: General information about the PXE boot process. How to deploy an image by using PXEFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

Here's how: Select Search , then type computer management. Select Computer Management from the list of results. In the console tree, select the arrow to expand Services and Applications, and then select Services. In the details pane, right-click or swipe down on Windows Installer, and then select Start. Describes how to use the clean boot ...

Recover lost or deleted files. Windows 7. Note: If you've recently updated Windows 10 and are having problems finding files, see Find lost files after the upgrade to Windows 10. If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try ...

Summary. This security update makes improvements to Secure Boot DBX for the supported Windows versions listed in the "Applies to" section. Key changes include the following: Windows devices that has Unified Extensible Firmware Interface (UEFI) based firmware can run with Secure Boot enabled. The Secure Boot Forbidden Signature Database (DBX ...

Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

Select the Start  button, then select Settings . Select Personalization > Themes > Desktop icon settings. Select the Recycle Bin check box > Apply. To get to desktop icon settings in Windows 8.1, swipe in from the right edge of the screen, then select Search. Type desktop icons in the search box, and then select Show or hide common ...

The Secure Boot Forbidden Signature Database (DBX) prevents UEFI modules from loading. This update adds modules to the DBX. A security feature bypass vulnerability exists in secure boot. An attacker who successfully exploited the vulnerability might bypass secure boot and load untrusted software. This security update addresses the vulnerability ...