Sign out of your account and then sign in to your new account. If everything is fixed, move your personal data and files to the new account. To move your personal files from your old account to your new account, try opening File Explorer, expanding This PC > OSDisk (C:), and looking in the Users folder, where you should see folders for both accounts.

Add guests to a group. When you add guests, also known as external users, to a group, you're granting them access to all information within the group.

Microsoft Edge is the recommended browser by Microsoft. Support for Internet Explorer ended on June 15, 2022. Internet Explorer 11 has been permanently disabled through a Microsoft Edge update on certain versions of Windows 10.

How to determine what is causing the problem after you do a clean boot. If your problem does not occur while the computer is in a clean boot environment, then you can determine which startup application or service is causing the problem by systematically turning them on or off and restarting the computer.

If you trust a file, file type, folder, or a process that Windows Security has detected as malicious, you can stop Windows Security from alerting you or blocking the program by adding the file to the exclusions list.

If your screen only has a Mini DisplayPort, you can set up the following connections—connect a USB-C to HDMI adapter to an HDMI cable then to an HDMI to Mini DisplayPort and then to your external screen. Keep in mind that the more adapters used, the more degraded the signal may get.

Know your limits Many email service providers set limits for the number of names that can be included in the To, Cc, and Bcc boxes in a message. For example, your email service provider may limit each message to a maximum of 100 email addresses. If these addresses are distributed among the To, Cc, and Bcc boxes, remember that the names in the Bcc box will count toward your total limit.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.