There are various reasons why a CD or DVD drive is not detected. The resolutions that are listed in this article may help solve some instances but not all instances of this problem.

Under PC settings, tap or click Update and recovery, and then tap or click Recovery. Under Advanced startup, tap or click Restart now. Once your PC restarts, on the Choose an option screen, tap or click Troubleshoot. If you don't see the Startup Settings option, tap or click Advanced options. Tap or click Startup Settings and then Restart.

マルウェアを削除しようとしている場合は、「Windows セキュリティで保護された状態を維持する」を参照して、スキャンを実行する方法を確認してください。 別のウイルス対策ソフトウェア プログラムを使用している場合は、そのプログラムのウイルス対策オプションを確認してください。

The display language you select changes the default language used by Windows features, such as Settings and File Explorer. Select Start > Settings > Time & language > Language & region. Choose a language from the Windows display language menu, or, next to Preferred languages , select Add a language to install the one you want if it isn't listed ...

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to cancel your Microsoft subscriptions such as Microsoft 365, Copilot Pro and Xbox. Troubleshoot issues if you can't cancel your subscription.

To change the power mode, select Start > Settings > System > Power & battery. For Power mode, choose the one you want. Note: You might not be able to change the power mode when a custom power plan is selected. If you can’t set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then ...

MATCH (lookup_value, lookup_array, [match_type]) The MATCH function syntax has the following arguments: lookup_value Required. The value that you want to match in lookup_array. For example, when you look up someone's number in a telephone book, you are using the person's name as the lookup value, but the telephone number is the value you want.

Change the keyboard layout or other method you use to type. Whenever you add a language, a keyboard layout or input method is added so you can enter text in the language. If you want to use a different keyboard layout or input method, you can add a new one or switch between the ones you have.

To turn off the memory Integrity setting. Go to the Core isolation page in Windows Security. Turn the Memory Integrity setting Off if it isn’t already. You'll need to restart your computer for the changes to take effect. You can also open the Core isolation page by selecting Start > Settings > Update & Security > Windows Security > Device ...

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