You should know the Windows encryption method. You only need to view the file properties, and then click Advanced-check Encrypt content to protect data to complete file encryption, but many friends have a problem, that is, the option Encrypt content to protect data is grayed out and cannot be checked, which makes it impossible for everyone to encrypt even if they know the encryption method.
Xiao Ao searched for some reasons and solutions, and summarized them for everyone:
The first reason is that Windows encryption still has many restrictions, such as only encrypting files in NTFS partitions, not encrypting files marked as "system" attributes, and not encrypting files located in the systemroot directory structure. I think the most important question for everyone may be that the Windows encryption function only supports the professional version system, and the home version of Windows does not support encryption.
If your computer system is a professional version, but you still can’t click to encrypt files to protect data, then try the following method.
First call out the registry, Windows + R enter regedit
In the registry, click HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Control \ FileSystem, then find NtfsDisableEncryption, double-click it, adjust the value data to 0, and click OK. After setting, check whether you can use the Windows encryption function.
If you think it is too troublesome to operate, you can also enter cmd during operation, open the command window, enter fsutil behavior set disableencryption 0, and set it through commands.
However, if you use Windows encrypted files, if you change the system, even if you know the password, you still cannot decrypt them, and there is still a great risk of file loss. Therefore, it is recommended that you encrypt the files in the form of a compressed package, or directly use encryption software to encrypt. Let's take Okaifeng minimalist encryption as an example. Using the encryption function, setting a password can also set the number of times to open the file
The more important thing is the password. Don’t worry about forgetting the password. The encryption software does not provide the function of retrieving the password, but as long as the encrypted account is the same as the account logged in during decryption, the file password can be decrypted with one click.
