When you find an icon with an exclamation mark on the hard drive symbol, it usually indicates that your operating system has enabled the disk encryption option called "BitLocker Drive Encryption". If you want to encrypt the disk, you only need to cancel the current encryption status first, and then set the encryption settings again to eliminate this exclamation mark.
1. Click Settings and enter "System"
2. Scroll down to find "About"
3. Click;
4. Click on the corresponding disk and click the Close BitLocker button on the right
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