How to Fix Windows Defender Error 0x800704ec
When you try to open Windows Defender (now called Microsoft Defender Antivirus) and see error cod...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Outlook Data File Sync Error: Cannot Access
You try to open Outlook and get a message that the data file cannot be accessed due to a sync iss...
How to Reactivate an Expired Windows License
If you see a "Windows license expired" or "Windows activation required" watermark, your copy of W...
Task Scheduler 504 Gateway Timeout: Causes and Solutions
If you use Task Scheduler to run scripts that call external APIs or web services, you might see a...
Fix Chrome 404 Error by Disabling Extensions
If you're seeing a 404 error in Chrome but the page loads fine in another browser, a misbehaving ...
Fix Windows Defender Proxy Error Not Working
You launch Windows Defender Security Center or try to run a scan, and you see a proxy error—somet...
Topic paths
Quick titles
How to Fix Windows Search When It Can't Connect to InternetFix Chrome Browser Crash on Ubuntu After UpdateHow to Fix WSL Ubuntu Internet Not Working After UpdateCommand Not Found in Windows 10 CMDFix OneDrive Sync Dependency Conflict Missing DLL ErrorProxy Server Causing Windows Update Timeout?Resolving FileZilla Connection Timeout ProblemsResolve Windows Search Path Not Found Error