You can find efficiency settings in Windows 11 at Settings > System > Power & battery . For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app: Guided walkthrough in Get Help. Click on each topic below to view some ideas that can improve the power ...

Windows 10. Windows 8. Windows 7, Windows Vista, or Windows XP. To view the certificate in the Personal Certificates store, do the following: Open Internet Explorer. On the Tools menu, click Internet Options, and then click the Content tab. Click Certificates, and then click the Personal tab. Important: If you digitally sign a document by using ...

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 ...

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

To pin Quick Assist to your taskbar so you can quickly get back to it, after Quick Assist is open, right-click (or press and hold) the icon on your taskbar > Pin to taskbar. If the old app icon still appears on your device, make sure you select the new app icon.

To open Disk Management, right-click (or long-press) the Start button and select Disk Management. If you need help freeing up space on your PC, see Disk cleanup in Windows or Free up drive space in Windows. Disk Management in Windows helps you perform advanced storage tasks like initializing a new drive and extending or shrinking volumes.

The account you associated with your Microsoft 365 for home product is the same email you used when you bought or activated Microsoft 365 the first time, or what you use to sign in and install or manage Microsoft 365 from your account portal. For help with this username or password, select from the options below:

Use the DATEDIF function when you want to calculate the difference between two dates. First put a start date in a cell, and an end date in another. Then type a formula like one of the following. Warning: If the Start_date is greater than the End_date, the result will be #NUM!.

To get a theme, expand one of the categories below, select a link for the theme, and then select Open. This saves the theme to your PC and puts it on your desktop. If you prefer, some themes can also be installed from the Microsoft Store. Explore themes in the Microsoft Store. Get free Windows themes from Microsoft to personalize background ...

To sign out, go to Outlook.com. Select your account initials or account picture at the top corner of your Inbox. Select Sign out. Tips: If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access ...