Change the account used to send email messages
If you have multiple accounts in Outlook, when you compose a new email message, Outlook picks the default account as the From account.However, if you want to Reply, Reply All, or Forward a message, Outlook will send your message with the same account the original mail was sent to.For example, Cheryl has two accounts.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Freeze panes to lock rows and columns - Microsoft Support
How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
كيفية تسجيل الدخول إلى Hotmail - دعم Microsoft
أصبح Hotmail الآن Outlook.com. تعرّف على كيفية تسجيل الدخول للوصول إلى حساب بريدك الإلكتروني على Outlook.com أو Hotmail أو Live أو MSN.
Applies To: Outlook.com
Add or remove items from a drop-down list - Microsoft Support
Edit a drop-down list that's based on an Excel Table. If you set up your list source as an Excel table, then all you need to do is add or remove items from the list, and Excel will automatically update any associated drop-downs for you.. To add an item, go to the end of the list and type the new item.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Uninstall or remove apps and programs in Windows
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.
Office Help & Training
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Getting started with Planner in Teams - Microsoft Support
The Planner app in Microsoft Teams brings together all your tasks and plans across the Microsoft 365 ecosystem in a single convenient location.
Applies To: Microsoft Planner, Microsoft Teams, Microsoft Teams for Education, Microsoft Teams personal, Microsoft Teams small business
Troubleshoot problems with your Microsoft mouse or keyboard
We'll describe three connection types for keyboards and mice. Follow the description that applies to your mouse or keyboard’s connection type.
I receive a 550, 553, or relay-prohibited error when sending email ...
Explains how to resolve relay-prohibited errors in an Outlook account.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Turn off Defender antivirus protection in Windows Security
Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.