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Knowledgebase : Eset NOD32 and Smart Security > Eset Installation Issues
   

How do I uninstall or reinstall ESET Smart Security/ESET NOD32 Antivirus? (4.x) Due to newer program releases or corrupted installations, reinstalling your ESET security product is sometimes necessary. The steps below will explain how to downloa...
Which version (32-bit or 64-bit) of ESET Smart Security or ESET NOD32 Antivirus should I download? To determine which version of the product you should download, first determine whether you have a 32-bit or 64-bit operating system. To do this, follow...
Troubleshooting for "Virus signature database update failed" message If you are receiving "Virus signature database update failed" messages, first try reentering your username and password. Instructions are available here. If the error message st...
Error downloading update file (4.x) If you receive the message "error downloading update file" while updating the virus signature database, it may be due to one or more of the following reasons: Interruption or loss of Internet connection Data...
Can I change my username and password? At the time of purchase or activation of your ESET security product, a unique username and password are generated for you that cannot be changed. The username and password allow your ESET security product to rec...