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Windows Firewall: What outbound rules to enable vital Windows processes/services?
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<blockquote data-quote="Andy Ful" data-source="post: 798718" data-attributes="member: 32260"><p>I tested the setup from my previous post. It seems that it partially restricts the connections of system processes. For example, without any rule for svchost.exe, the firewall blocked downloading files via bitsadmin.exe and also via PowerShell with BitsTransfer cmdlet (both use BITS). The same effect was when I allowed svchost.exe with a safe option: Allow the connection if it is authenticated and integrity-protected. But, if svchost.exe was fully allowed by the firewall rule, then the download was allowed.</p><p>The similar is probably true for Windows Updates.</p></blockquote><p></p>
[QUOTE="Andy Ful, post: 798718, member: 32260"] I tested the setup from my previous post. It seems that it partially restricts the connections of system processes. For example, without any rule for svchost.exe, the firewall blocked downloading files via bitsadmin.exe and also via PowerShell with BitsTransfer cmdlet (both use BITS). The same effect was when I allowed svchost.exe with a safe option: Allow the connection if it is authenticated and integrity-protected. But, if svchost.exe was fully allowed by the firewall rule, then the download was allowed. The similar is probably true for Windows Updates. [/QUOTE]
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