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。

In the search box on the taskbar, type Create a restore point, and select it from the list of results.

Training: Watch and learn how to create a PowerPoint presentation, add/format text, and add pictures, shapes, and/or charts.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Notes: Meeting recordings won't capture whiteboards, annotations, shared notes or content shared in the stage view by apps, and also won't include videos or animations embedded in PowerPoint Live presentations.

PowerPoint 2021 for Windows lets you create compelling content with the addition of features including co-authoring, Ink Replay, improved slide show recording, new stock media from the Office Premium Creative Content collection and new Draw tab additions such as Point Eraser, Ruler, and Lasso.

Learn how to download, customize, and troubleshoot Windows Media Player 12 with helpful guides and tips.

Info for Windows Insiders. If you’re an Insider and the current preview build isn’t working for you, select Start > Settings > System > Recovery .Next to Go back , select Go back.This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.

Sign in to www.office.com from a web browser and start using the apps on the web or access other web services associated with your account such as OneDrive.. How you sign in to an installed Office app depends on your device.

On the We need to verify your identity screen, select the security contact method (email address or phone number) where you want us to send your code. Select the option listed to open a drop-down list of all the options that you have set up on your account. Follow the instructions for completing the contact email address or phone number and select Send code.