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Go to Control Panel>Firewall>Advanced Settings . Then click Action>Export policy to make a copy of your current policy in case you want to restore it. Then click Action>Restore Default Policy . If it really is just the Firewall, this should allow you to use Windows Update.
What ports need to be open for Windows Update?
Windows Update requires TCP port 80, 443, and 49152-65535. The IP address for the Windows Update web site constantly changes and it is not a fixed address.
How do I unblock Windows Update?
How do I unblock updates.
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- go to this link:
- Select Download tool, and select Run. …
- On the License terms page, if you accept the license terms, select Accept.
- On the What do you want to do? …
- After downloading and installing, it should fix the issue.
