Summary. This article describes the protection against the publicly disclosed Secure Boot security feature bypass that uses the BlackLotus UEFI bootkit tracked by CVE-2023-24932, how to enable the mitigations, and guidance on bootable media.A bootkit is a malicious program that is designed to load as early as possible in a devices boot sequence to control the operating system start.

Press and hold the volume-up button on your Surface, and, at the same time, press and release the power button. The Microsoft or Surface logo appears on your screen. Continue to hold the volume-up button. Release the button when the UEFI screen appears. You can also load the UEFI firmware settings menu through Windows.

Rename the file. You can rename the file (or request that the sender rename the file) to use an extension that Outlook doesn't block. For example, you can rename file.exe to file.docx. Once the renamed file is sent (or received), save it and rename it with the original extension using the following steps. Locate the attachment in the email message.

Select the file, or files, that you want to check in. Above the Documents list, select the three-dot menu, and then select Check in. Note: In the classic experience, find Check In on the Files tab in the ribbon. In the Comments area, add a comment that describes the changes you made. This step is optional but recommended as a best practice.

The SWITCH function evaluates one value (called the expression) against a list of values, and returns the result corresponding to the first matching value. If there is no match, an optional default value may be returned. Note: This feature is available on Windows or Mac if you have Office 2019, or if you have a Microsoft 365 subscription. If ...

On the Format tab, in the Current Selection group, click the arrow next to the Chart Elements box, and then click Vertical (Value) Axis. On the Format tab, in the Current Selection group, click Format Selection. In the Format Axis pane, click Axis Options, and then do one or more of the following: Important The following scaling options are ...

To improve memory and CPU utilization of the Microsoft Edge browser, we've developed a feature called sleeping tabs. Sleeping tabs puts background tabs to sleep after two hours of inactivity to free up resources for active tabs, new tabs, and other applications on your device. You can adjust the time interval by going to edge://settings/system.

On the Inbox rules tab, click the arrow next to the plus symbol +, and select Create a new rule for arriving messages. Under When the message arrives, select Apply to all messages. Under Do the following, click More options. Under Do the following, select Forward, redirect or send, and then select Forward the message to or Forward the message ...

If you want to open or close an Outlook Data File (.pst), you can do that in a few simple steps. Note: If your organization has policies in place that archive email messages automatically, your older email messages, calendar events, and tasks might be stored in an archive Outlook Data File (.pst). Even if your account uses an offline Outlook ...

Energy saver automatically manages system processes and power usage for an optimal balance of PC performance and longer battery life. Select Start > Settings > System > Power & battery .If you want energy saver to turn on whenever the battery falls below a certain level, select Energy saver to expand options, then next to Turn energy saver on when battery level is at, select the battery level ...