Add your Outlook.com, Microsoft 365, or Exchange-based email account to your iPhone, iPad, or iPod Touch using the iOS Mail app.

Under Reset this PC, select Get started, and then follow the instructions on the screen.Resetting your device removes your files, settings, and apps, then reinstalls Windows.

An array formula (one that spans multiple cells) can do calculations on rows and columns of cells where you might otherwise need to use several formulas. For example, you can count the number of characters that are contained in a range of cells, sum only numbers that meet certain conditions (such as the lowest values in a range or numbers that fall between an upper and lower boundary), and sum ...

To verify that your digitally signed message was received unaltered by the intended recipients, select the Request S/MIME receipt for all S/MIME signed messages check box. You can request notification telling you who opened the message and when it was opened, When you send a message that uses an S/MIME return receipt request, this verification information is returned as a message sent to your ...

The COUNTIFS function is similar to the COUNTIF function with one important exception: COUNTIFS lets you apply criteria to cells across multiple ranges and counts the number of times all criteria are met. You can use up to 127 range/criteria pairs with COUNTIFS. The syntax for COUNTIFS is: COUNTIFS(criteria_range1, criteria1, [criteria_range2, criteria2],…)

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Training: As you select and move objects in PowerPoint, guides appear to help you align objects and space them evenly. You can also use the helpful Align options, Guides, and Gridlines to align objects to give your presentation a professional look. Watch this video to learn how.

If you need to sum a column or row of numbers, let Excel do the math for you. Select a cell next to the numbers you want to sum, select AutoSum on the Home tab, press Enter, and you’re done. When you select AutoSum, Excel automatically enters a formula (that uses the SUM function) to sum the numbers. Here’s an example.

Choose from a list of standard headers or footers, go to the list of Header or Footer options, and select the header or footer that you want. Or, create your own header or footer by selecting Edit Header or Edit Footer.

On a device that uses battery power, if you select Start > Settings > Personalization > Taskbar and the Power toggle is greyed out or not visible, in the Search box on the taskbar, type device manager, and then select Device Manager in the list of results. Under Batteries, right-click (or long-press) the battery for your device, select Disable, and select Yes.