Learn how to encrypt a file or folder in Windows.

Learn about BitLocker Device Encryption in Windows and how to enable it.

To manually encrypt a drive: Next to each drive there's a list of allowed operations. To enable encryption, select the option Turn on BitLocker . The drive will begin the encryption process. This can take some time to complete, but you can continue to use your device while it progresses.

As of June 2001, Microsoft has developed an improved version of the Cipher.exe tool that provides the ability to permanently overwrite (or "wipe") all of the deleted data on a hard disk.

To set up Outlook for encryption and digital signatures, choose instructions based on the version of Outlook you're using. What version of Outlook do I have? Configure S/MIME in new Outlook for encryption and digital signatures.

Learn how to open encrypted emails. Outlook protected messages have a banner at the top of the message that informs you of restrictions. Outlook should open the message like normal. Otherwise, follow instructions for opening encrypted or protected mail.

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

After the tool finishes preparing the drive, you must restart the computer. Then, you can use the Security item in Control Panel to enable BitLocker. To encrypt drives and to verify boot integrity, BitLocker requires at least two partitions. These two partitions make up a split-load configuration.

Microsoft Office attachments such as Word, Excel or PowerPoint files remain encrypted even after they're downloaded. Other attachments, such as PDF files or image files can be downloaded without encryption. Encrypt: Your message stays encrypted and doesn't leave Microsoft 365.

To resolve this issue, install update 3024777. This update is available from Windows Update. The following files are available for download from the Microsoft Download Center. Download the package now. Notes. The update installer should be run from an elevated command prompt.