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For a number of reasons, QuickBooks Update Error 15106 may occur. Anti-virus software may be installed on your computer. This may be blocking QuickBooks from accessing the internet or updating files. It's conceivable that your access to specific files has been restricted by the system administrator. As a consequence, viewing the files may need logging in as an administrator. There's a chance that your firewall or antivirus program may classify the QB update utility as malware.
