Sometimes you need to check if a cell is blank, generally because you might not want a formula to display a result without input. In this case we're using IF with the ISBLANK function: =IF (ISBLANK (D2),"Blank","Not Blank") Which says IF (D2 is blank, then return "Blank", otherwise return "Not Blank"). You could just as easily use your own ...

如果您在安裝印表機或掃描器時發生問題，請參閱修正印表機問題或在 Windows 中安裝和使用掃描器。 使用迅速配對來配對藍牙裝置 Windows 11中的迅速配對可讓您快速配對支援的藍牙裝置與電腦。 如果藍牙裝置支援迅速配對，當裝置在附近且您將其置於配對模式以使其變成可搜尋的，您會收到通知。

注意: 默认情况下，当添加一个使用脱机 Outlook 数据文件 (.ost) 的帐户时，会自动创建该文件和从服务器下载相关数据。此外，如果为脱机 Outlook 数据文件 (.ost) 指定新的文件夹位置，会自动创建一个新文件。 可以手动将现有文件移动到此新文件夹，这样可以避免重新创建文件，节省时间，虽然这一 ...

Edit a contact list. On the side panel, select People. Select All contact lists, then select Edit by either right-clicking the contact list or selecting it from the Ribbon. You'll have the option to rename the contact list, add additional contacts to the list, or add a Description to the list. When you are finished, select Save.

Add a new Yahoo email account. On the View tab, select View settings. Select Accounts, then Email accounts. Tip: If your Settings window doesn't look like this, you might be using classic Outlook. Select + Add Account. Enter the Yahoo! account you want to add and select Continue. On Sync your Yahoo account, select Continue.

For more information see How to back up and restore the registry in Windows. There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results. Right-click Start , then select Run. Type regedit in the Open: box, and then select OK.

Signing certificate To create a digital signature, you need a signing certificate, which proves identity. When you send a digitally-signed macro or document, you also send your certificate and public key. Certificates are issued by a certification authority, and like a driver’s license, can be revoked. A certificate is usually valid for a ...

If your PC has a cellular data connection and you share it, it will use data from your data plan. Select Start , then select Settings > Network & internet > Mobile hotspot. For Share my internet connection from, choose the internet connection you want to share. For Share over, choose how you want to share your connection—over Wi-Fi or Bluetooth.

Check your expiration status. Go to your Services & subscriptions page. If prompted, choose Sign in and enter the Microsoft account email and password associated with your Microsoft 365 subscription. Review the details under the Services & Subscriptions heading. If you see a circle arrow, then your subscription is set up for recurring billing ...

Select Install (or depending on your version, Install apps> ). From the home page select Install apps (If you set a different start page, go to aka.ms/office-install .) For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn/account. For Microsoft 365 Germany go to portal.office.de/account.