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Windows 10 Updates failing and fix

I came onsite today to setup a new laptop (Windows 10, HP) to discover that Windows updates was very unhappy on the new setup. Discovered that the XG was blocking (warning really) about *.windows.com .CAB files which meant my XG web filter was blocking windows updates.... Not sure for how long on existing computers, but as soon as I manually added an exception for windows.com in the web filter policy, everything started working fine. Noticed that Sophos only listed microsoft.com and windowsupdates.com in the filter, but maybe Microsoft recently started using windows.com also for update CAB files....Not sure if I'm the only one, but this was my fix today.



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  • apalm123 said:

    I came onsite today to setup a new laptop (Windows 10, HP) to discover that Windows updates was very unhappy on the new setup. Discovered that the XG was blocking (warning really) about *.windows.com .CAB files which meant my XG web filter was blocking windows updates.... Not sure for how long on onewalmart existing computers, but as soon as I manually added an exception for windows.com in the web filter policy, everything started working fine. Noticed that Sophos only listed microsoft.com and windowsupdates.com in the filter, but maybe Microsoft recently started using windows.com also for update CAB files....Not sure if I'm the only one, but this was my fix today.

     

    Same problem with my new HP laptop. Is it happening with HP laptops only? Because I have recently set up my friend's lenovo laptop but did not see any issues

  • Hi apalm123,

    It depends on the update domain, please check out this link for Microsoft windows update domains: Windows Update troubleshooting

    If you have web proxy configured on the firewall, you would have to bypass windows update domains as web proxy will intercept it and change non standard SSL ports and requesting client will reject the traffic. 

    Thanks,

     

     
    H_Patel

    Community Support Engineer, Support & Services| Sophos Support
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