
Fix Outlook Proxy Error After Windows Update
After a Windows update, some users see a proxy error in Outlook—something like “Cannot connect to...

After a Windows update, some users see a proxy error in Outlook—something like “Cannot connect to...

You try to open Outlook and see a message that your data file (.pst or .ost) is locked. Often thi...

You try to activate Windows, but get a DNS error. The system can't reach the activation server. T...

You open Outlook and see a persistent warning about an SSL certificate error. The message often s...

If you need Windows Terminal to use a proxy server—for example, behind a corporate firewall or a ...

If you see "Windows Defender service not running" or a red warning in Security Center, the underl...