Troubleshooting

Here, you can find everything from advanced installation tips to error messages.

• Clean uninstall and reinstall of current NovaBACKUP client software (all versions) (advanced method guide)
• Clean uninstall of NovaBACKUP (simple method guide)
• Simple method guide for unable to create a new network based (UNC-based) 'Local Backup' device type in NovaBACKUP 21.x and newer
• How to extract the MSI installer (x64) file from the 21.2.804 version (and newer versions) client installer .exe file
• PowerShell TCP test - for troubleshooting why Online Activation attempts can fail in the backup client (that will typically cause the prompt to "Activate off-line" to be seen, but not many license keys contain the ability to perform an Offline Activation, so that can't be done anyhow due to that current license property value, just realize)
• PowerShell TCP test - for troubleshooting error "Could not proceed due to internal error: switching to cache channel : pos: create bucket error - encountered network error" during a Cloud Backup device backup attempt
• PowerShell TCP test - for troubleshooting error "HTTP ERROR 500" seen in web browser if an Offline Activation ("activate.novabackup.com" as the landed at or resolved web address, otherwise "https://novabackup.com/activate" would be the short web address, that will redirect to "activate.novabackup.com") is attempted via a web browser (on the client machine or on another separate machine)
• Cannot Activate NovaBACKUP client due to a problem with the "Windows Management Instrumentation" (WMI) service in the OS ("Activation failed for unknown reason" and/or "Unexpected activation error" error text seen in the "License Registration" dialog), due to that service is not running or can't start, and otherwise other items to check
• How to correct the Cloud backup job log error: 'Error e0010029: Cloud Backups have been disabled, please refresh the connection to the Management Server. - Job processing failure' due to Agent has not
• Microsoft VSS Troubleshooting
• Failed to activate license online: .NET activation error: HRESULT: 0x80131501
• Anti Virus Software: Exception rules for NovaBACKUP
• Repair .NET framework
• NovaBACKUP client Installer fails on activation; workaround install via command line
• Hard Disk Drive (HDD) diagnostic tools; some can attempt to repair bad sectors
• Error "Querying plugins failed" in the client Backup tab dialog on Win Server 2025 24H2 (April 2025 Updated) OS, that is a Domain Controller, if UAC is enabled in OS; no plugins will list & backup job
• 'Error e0020007: Invalid command specified. - Job processing failure', when trying to restore files on network paths
• Backup may fail with "Error: The network path was not found." if the Local Backup UNC based (network) device, created via CMon UI, 'Path' field value contains a trailing backslash character at the end
• Installation ends prematurely on client install
• "Unable to encrypt/decrypt .." Cloud backup log error message for Cloud device backups (21.x and newer versions)
• Exclude NovaBACKUP client web addresses in Norton - Smart Firewall - Traffic Rule settings, otherwise if the Smart Firewall feature is enabled, then the NovaBACKUP client can fail the activation/regis
• Image Backup Failure Troubleshooting
• Tape: nonsense bundletag and size error
• Fix "Fat Table Not Found" and "could not locate channel" backup job log errors
• Can't Restore Files from Your NAS Backup?
• Backup of files located on share fails
• VSS Command Line Repairs
• Pre-post Scripts