Use the System File Checker tool to repair missing or corrupted system ...
If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.
Update drivers manually in Windows - Microsoft Support
Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.
Fix your Outlook email connection by repairing your profile
Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.
Applies To: Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin
Receive Remote Assistance Support from Microsoft
Remote Assistance Support from Microsoft allows a Microsoft support professional in another location to view your computer screen and work on your computer over a secured connection. Protect yourself from tech support scams. Before clicking 'I accept', review the: Agreement for Microsoft Services. Microsoft Software License Terms.
Troubleshoot problems installing and running Quick Assist
If your device has Microsoft Edge installed, then it’s likely that Quick Assist will run properly. If you have problems, the common troubleshooting tips here may help get Quick Assist working. See Troubleshooting tips for installing and updating Microsoft Edge.
Fix problems that block programs from being installed or removed
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter.
KB5043950: Microsoft Defender for Endpoint known issue
Symptom. New Windows 11, version 24H2 devices that are intended to be onboarded to Microsoft Defender for Endpoint might require customers to enable the prerequisite feature. This affects all supported architectures.
Solve PC problems remotely using Quick Assist - Microsoft Support
Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it). Select Start > All apps > Microsoft Store. In the Microsoft Store, search for and select Quick Assist. Select Get or Install.
How to use the PC Health Check app - Microsoft Support
If your device isn’t up to date or needs attention, PC Health Check will let you know. Use this section of PC Health Check to get info on how your batteries are performing compared to their original capacity for devices with one or two batteries.
Running troubleshooters in Get Help - Microsoft Support
Get Help has troubleshooters you can run for many common scenarios. These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Start to start that troubleshooter.