To add a Microsoft account to Windows 11, follow these steps:
1. Click the **Start** button and select **Settings** (gear icon).
2. Click **Accounts** > **Your account** > **Sign in with a Microsoft account instead**.
3. Enter your Microsoft account email address and password.
4. Click **Next**.
If you're adding a Microsoft account to a work or school computer, you may need to enter your work or school email address and password.
To remove a Microsoft account from Windows 11, follow these steps:
1. Click the **Start** button and select **Settings** (gear icon).
2. Click **Accounts** > **Your account**.
3. Under **Account details**, click **Disconnect this account**.
4. Click **Next**.
5. Enter your Microsoft account password.
6. Click **Finish**.
To add a local account to Windows 11, follow these steps:
1. Click the **Start** button and select **Settings** (gear icon).
2. Click **Accounts** > **Family & other users**.
3. Under **Other users**, click **Add account**.
4. Click **I don't have this person's sign-in information**.
5. Click **Add a user without a Microsoft account**.
6. Enter a username, password, and password hint.
7. Click **Next**.
To remove a local account from Windows 11, follow these steps:
1. Click the **Start** button and select **Settings** (gear icon).
2. Click **Accounts** > **Family & other users**.
3. Under **Other users**, click the account you want to remove.
4. Click **Remove**.
5. Click **Yes** to confirm.
Please note that you cannot remove the last administrator account on a computer.