
How to Fix Windows Defender Not Opening
If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...

If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...

If Windows Search is stuck on "Loading results..." or the search box shows a spinning circle, it'...

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

If you're seeing a 404 error in Microsoft Teams—often when opening a chat, channel, or file—it's ...

When you try to share your screen in Microsoft Teams and nothing happens—or participants see a bl...

When Outlook crashes, hangs, or shows sync errors, support teams often ask for log files. Here's ...