Smart App Control Frequently Asked Questions - Microsoft Support
Frequently asked questions (FAQs) about Smart App Control, a Windows feature designed to block malicious, untrusted, or potentially unwanted apps from running on your device.
What happens if there's an unusual sign-in to your account
Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert. If your phone number or email changes, it's important to promptly update the security contact info on the Security basics page so we can work with ...
Applies To:
Microsoft account dashboard
Microsoft Support
Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.
Installing Microsoft Defender - Microsoft Support
Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code Searching for Microsoft Defender in your app store Sharing with your devices, the following link: Copy link We encourage you to install Microsoft Defender on at least five devices per person. Ready to give it ...
Applies To:
Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
允許應用程式通過 Windows 防火牆的風險 - Microsoft 支援服務
有兩種方式可允許應用程式通過 Windows Defender 防火牆。 兩者都有風險： 將應用程式新增至允許的應用程式清單 (風險較低) 開啟 (風險更大的埠) 當您在 Windows 防火牆中開啟埠時，即允許流量進入或註銷您的裝置。 這會降低裝置的安全性，並可能會讓駭客或惡意代碼有機會使用其中一個開口來取得您 ...
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.
Seamlessly transfer content between your devices - Microsoft Support
File sharing between your mobile device and your PC Now you can seamlessly share files between your PC and mobile device when they are connected via Phone Link and the Link to Windows app. What do I need to share files between my PC and mobile device? A PC running Windows 10 (with the May 2019 update or later) or Windows 11 Android device running Android 9.0 or later Link to Windows app ...
Troubleshoot problems with Microsoft Authenticator
You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors.
Fix problems with apps from Microsoft Store - Microsoft Support
Get troubleshooting tips to fix problems with apps from Microsoft Store.
App permissions - Microsoft Support
Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.