To make sure your device can successfully update and that it runs its best, Windows reserves a portion of storage space on your device for use by temporary files, caches, and other files.

Once you've allowed microphone access to your apps, you can change the settings for each app. In Microphone settings, go to Choose which Microsoft apps can access your microphone, and turn on apps you want to use with it.For desktop apps, make sure that Allow desktop apps to access your microphone is turned on.

提示: 当商店或网站坚持获取电子邮件地址时，有些人会使用第三个“一次性”电子邮件地址。此电子邮件地址（有时称为“垃圾邮件陷阱”）可能是你很少检查的东西，因为它实际上应该只收集广告、优惠和垃圾邮件。

Note: In the following countries, you can cancel your subscription, and depending on the subscription length you may be entitled to a prorated refund.See Countries with prorated refunds for Microsoft subscriptions for more information. Any subscription length - Canada, Israel, Korea, and Turkey Subscriptions longer than 1 month and renewed - Denmark, Finland, Germany (purchases on or after ...

Windows 10 と Windows 11には、最新のウイルス対策の保護を提供する Windows セキュリティが含まれています。 お使いのデバイスは、Windows を起動した瞬間からアクティブに保護されます。

قبل البدء، تأكد من أن جهاز الكمبيوتر Windows 11 يدعم Bluetooth. لمزيد من المعلومات حول كيفية التحقق، راجع إصلاح مشاكل Bluetooth في Windows.إذا كنت بحاجة إلى مساعدة في إضافة جهاز بدون قدرات Bluetooth، فشاهد إضافة جهاز إلى كمبيوتر Windows.

Is it available on my device? BitLocker encryption is available on supported devices running Windows 10 or 11 Pro, Enterprise, or Education. On supported devices running Windows 10 or newer BitLocker will automatically be turned on the first time you sign into a personal Microsoft account (such as @outlook.com or @hotmail.com) or your work or school account.

How to determine what is causing the problem after you do a clean boot. If your problem does not occur while the computer is in a clean boot environment, then you can determine which startup application or service is causing the problem by systematically turning them on or off and restarting the computer.

Excel makes it easy to crunch numbers. With Excel, you can streamline data entry with AutoFill. Then, get chart recommendations based on your data, and create them with one click.

Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.