Antivirus & Endpoint Security
Endpoint protection errors, installation and uninstall failures, and management consoles.
55 articles
Your Avira license has expired
Avira says your licence has expired and protection features are locked
Avira shows Your Avira license has expired when the subscription ends and paid features switch off. Here is the cause…
0x00000001
Avira error 0x00000001 and 501: install and update failures on Windows
Avira error 0x00000001 blocks setup or updates before they finish. Learn what damages the installation and how to rebuild it…
Your subscription has ended
F-Secure says your subscription has ended and the app stops protecting you
F-Secure shows "Your subscription has ended" once the subscription key stops validating. Here is the cause and the quickest route…
Virus signatures could not be updated
G DATA virus signatures could not be updated after the licence ran out
G DATA reports "Virus signatures could not be updated" when the licence lapses or the update path is blocked. Read…
118
Sophos install error 118 and 122: endpoint setup fails to complete
Sophos error 118 means the installer could not download or apply its components, often beside a rival antivirus. See the…
Your keycode has expired
Webroot says your keycode has expired and SecureAnywhere stops protecting
Webroot shows "Your keycode has expired" when the keycode term ends or the seat is gone. Here is the cause…
Your Panda subscription has expired
Panda subscription expired: Panda Dome drops to limited free protection
Panda shows "Your Panda subscription has expired" when the plan ends and paid layers switch off. Read the cause and…
Your license has expired
Emsisoft says your license has expired and real-time protection stops
Emsisoft shows "Your license has expired" once the term ends, leaving scanning without live protection. Here is the cause and…
5001
Defender event 5001: real-time protection off while another antivirus holds the registration
Defender event 5001 means real-time protection was disabled, normally by another antivirus holding the registration. Here is the mechanism and…
5000
Only Microsoft Defender is left protecting this PC after your suite lapsed
Defender event 5000 shows Defender taking over after a paid suite stopped. Read what you actually lost and how to…
Databases are corrupted
Kaspersky says databases are corrupted and updates keep failing
The Kaspersky Databases are corrupted message means the local update store is damaged. Here is why it happens and how…
628
Kaspersky VPN Secure Connection error 628: tunnel drops after the daily limit
Kaspersky VPN error 628 means the tunnel was terminated before it opened, or the free daily cap is spent. Read…