Verification of the checksum is necessary in order to check the integrity and completeness of the data transfer when downloading documents via communication channels. This is especially important when loading a Windows operating system distribution kit. This will allow you to avoid errors in the system and protect yourself from pirated copies and viruses.
Instructions
Step 1
Go to the official site of the document, software, or operating system that you downloaded to your computer. In the file details section, you can find the checksum value, which is also referred to as SHA1. Save this character set to a separate text file or copy it onto a piece of paper.
Step 2
Download the HashTab utility. This program is distributed on many specialized computer sites, so it is quite easy to find it on the net. However, it is best to use the official source https://hashtab.ru/ to protect your computer from various viruses. Just in case, check the downloaded file with an antivirus. The software is made in two versions, one for Windows, and the other for Mac.
Step 3
Install the program on your computer. Navigate to the file being scanned and right-click on it. If you have a Windows operating system, then go to the "Properties" section and select the "File hashes" tab. If you are using a Mac OS, select the File Hashes section and click on More. If these tabs are not present, then you have incorrectly installed HashTab.
Step 4
Go to the control panel, uninstall the program and reinstall it. When you select a tab, the program will start calculating the checksum, which will take some time. At the end of the process, rewrite the resulting value.
Step 5
Compare the original checksum with the one obtained by the program. If they match, then the file has been loaded correctly. Otherwise, it indicates data loss, file incompleteness, pirated copy, or virus infection. Delete the damaged document and upload again. If you believe that the download source is the culprit, then it is better to choose a different download site.
