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Fix sound or audio problems in Windows - Microsoft Support
Find out how to fix sound or audio problems in Windows.
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Fix Bluetooth problems in Windows - Microsoft Support
Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.
How to sign in to or out of Outlook.com - Microsoft Support
Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.
Applies To: Outlook.com
Turn off, disable, or uninstall OneDrive - Microsoft Support
Learn how to turn off or uninstall OneDrive. OneDrive is built in to some versions of Windows and can't be uninstalled.
Applies To: OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint in Microsoft 365, Office for business, Microsoft 365 admin, OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows, SharePoint admin center, SharePoint in Microsoft 365 Small Business, SharePoint operated by 21Vianet
View and delete browser history in Microsoft Edge
Learn how to view and delete your browser history and other history in Microsoft Edge.
Windows 11, version 23H2 update history - Microsoft Support
Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)
Upgrade Windows Home to Windows Pro - Microsoft Support
Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.
Insert a check mark symbol - Microsoft Support
Insert a check mark symbol while working in Word, Excel, Outlook, or PowerPoint.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016
PC 使 - Microsoft
PC 正常性チェック アプリは、お使いの Windows デバイスの正常性に関する最新の情報を提供して、デバイスのパフォーマンス向上のための対処や、パフォーマンス問題のトラブルシューティングに役立ちます。