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Windows 8 can't update how to do

  
This error is generally caused by the Windows Update server receiving an unusually many update requests. If the update is not resolved 20 minutes after the Update is closed, please check whether the network is unblocked. Second, add the Update website address to the firewall exception or "allow">http://*.update.microsoft.com https://*.update.microsoft.com http://download.windowsupdate.com If you have the conditions, you can change the network environment to try to update.
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