Knowledge base for software setup, errors, and daily tool work.

Fix 'Outlook Service Unavailable' After Disabling Firewall

If you disabled your firewall and now Outlook shows 'service unavailable,' you’re not alone. This...

Fix Windows Defender Connection Refused on Windows 10

When you see "connection refused" while using Windows Defender on Windows 10, it usually means th...

Fix Windows Security Rate Limit Error & Permission Denied

When Windows Security throws a 'rate limit exceeded' or 'permission denied' error, it usually mea...

Setup OneDrive Sync for New Tenant After Migration

After a tenant-to-tenant migration, OneDrive sync often breaks because the client caches the old ...

Fix 'ffmpeg command not found' in PHP exec()