• How To Remove “CRC SHA” From Context Menu In Windows 10/7/8

    Earlier this month, 7-Zip stable version 15.12 was released after a long time, and the new version adds a couple of new features to the widely used file compression software. The support for RAR5 format is probably the highlight of this version.
    Over the last weekend, I installed the latest version of 7-Zip and didn’t use it after that. Last evening, while composing how to remove Cast to Device entry from Windows 10 context menu, I noticed the new CRC SHA entry in the context-menu added by 7-Zip.
    Remove CRC SHA from context menu in Windows pic1
    So when you install the latest version of 7-Zip on your Windows 10, Windows 8/8.1, Windows 7, or earlier versions, it adds two entries to the file/folder context menu: 7-Zip, and CRC SHA. Clicking on the newly added CRC SHA entry displays CRC-32, CRC-64, SHA-1, SHA-256, and * (calculates and displays both SHA and CRC values) entries.

    What is CRC?

    Remove CRC SHA from context menu in Windows pic2
    As many of you already know, CRC stands for Cyclic Redundancy Check, and is used in digital networks to detect accidental changes to data. Read more about CRC by visiting this page of Wikipedia.

    What’s SHA?

    SHA or Secure Hash Algorithm developed by the National Security Agency in the U.S., and is widely used to determine the integrity of data. SHA is often used to check the integrity of data downloaded from the web to make sure that the downloaded data is not corrupted in transmission or due to other issues.
    There are plenty of tools out there to calculate CRC and SHA value in Windows operating system. Previous versions of 7-Zip also supported calculating CRC and SHA but the process was not very straight-forward.
    The latest version of 7-Zip makes calculating these hash values a little more easier by adding CRC SHA entry to file/folder context menu.
    While the new CRC SHA entry definitely helpful, a large number of PC users are not aware of these features and don’t use them at all.
    If you are using any other tool to calculate CRC and SHA hash value or don’t use these features at all, you might want to remove the CRC SHA entry from the context menu.
    Remove CRC SHA from context menu
    To remove CRC SHA entry from right-click menu in any version of Windows, follow the given below instructions without any deviations.
    Step 1: Open 7-Zip File Manager by typing 7-Zip in the Start search box and then pressing Enter key.
    Remove CRC SHA from context menu in Windows pic3
    Step 2: Once 7-Zip window is launched, click Tools menu, and then click Options to open the same.
    Remove CRC SHA from context menu in Windows pic4
    Step 3: Switch to the 7-Zip tab. Under Context menu items section, uncheck the checkbox labelled CRC SHA >, and then click Apply button to get rid of CRC SHA from the context menu.
    Remove CRC SHA from context menu in Windows pic5
    NOTE: If you see an error dialog with “An event was unable to invoke any of the subscribers” message, simply click OK button to remove the context menu entry.
    Remove CRC SHA from context menu in Windows pic6
    Hope this helps!
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