Fix problems that block programs from being installed or removed
Learn how to use the Program Install and Uninstall troubleshooter to fix corrupted registry keys, prevent programs from being installed or removed, and access the product code. The troubleshooter runs on Windows 10, 8.1, 8, and 7.
Uninstall or remove apps and programs in Windows
Learn how to remove apps and programs from your Windows 10 or 11 device using different methods. Find tips and troubleshooters for common issues and errors.
Remove malware from your Windows PC - Microsoft Support
Learn how to use Microsoft Defender Antivirus to scan and remove malware from your PC. Follow the steps to run an offline scan, view the results, and restore your system.
Applies To: OneDrive (home or personal), OneDrive for Windows
Use the System File Checker tool to repair missing or corrupted system ...
Learn how to use the System File Checker tool (SFC.exe) to scan and restore Windows system files that are not working or causing crashes. Follow the steps to run SFC.exe, view the scan results, and manually replace the corrupted files if needed.
Blocked attachments in Outlook - Microsoft Support
Learn why Outlook blocks certain file types as attachments and how to send and receive them safely. Find out how to unblock some file types, change file extensions, or use file compression utilities.
Applies To: Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016
Enable or disable security alerts about links and files from suspicious ...
Learn how to enable or disable security alerts in Office 2013 and 2010 when you work with links or files from suspicious websites. See examples of suspicious links and how to add trusted sites to your zone in Internet Explorer.
Applies To: Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, OneNote 2013, Project Professional 2013, Project Standard 2013, Publisher 2013, Visio Professional 2013, Visio 2013, Excel 2010, Word 2010, Outlook 2010, PowerPoint 2010, Access 2010, OneNote 2010, Project 2010, Project Standard 2010, Publisher 2010, Visio 2010, Visio Standard 2010, Office 2010, Clip Organizer 2010, Clip Organizer 2013, Excel Starter 2010, InfoPath 2010, InfoPath 2013, Word Starter 2010
Add an exclusion to Windows Security - Microsoft Support
Learn how to stop Windows Security from alerting you or blocking a trusted file, file type, folder, or process by adding it to the exclusions list. Follow the steps for Windows 11 or Windows 10 and see the caution and links for more information.
Protect your PC from potentially unwanted applications
Learn how to configure and use Windows Security to protect your PC from PUA, a category of software that can slow down your machine or display unwanted ads. Windows Security can block PUA as you download or install them, and notify you to take action.
Manage cookies in Microsoft Edge: View, allow, block, delete and use ...
Learn how to view, allow, block, and delete cookies in Microsoft Edge, a web browser for Windows 10 and 11. Cookies are small pieces of data stored on your device by websites you visit.
Applies To: Microsoft Edge
View and delete browser history in Microsoft Edge
Learn how to view and delete your Microsoft Edge browsing history stored on your device, across synced devices, and in the cloud. You can also clear Internet Explorer browsing data using Microsoft Edge if your organization has turned on Internet Explorer mode.