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

FFmpeg Audio Out of Sync: Practical Fixes

You encoded a video with FFmpeg and now the audio is ahead or behind by a fraction of a second. T...

How to Unlock APT in Ubuntu: Fix Locked Package Manager

If you see an error like 'Could not get lock /var/lib/dpkg/lock' or 'Unable to acquire the dpkg f...

Fix Windows Activation High CPU Usage with Clean Boot

If your system's CPU usage spikes after a Windows activation check, a clean boot can help identif...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Fix Windows Update Invalid Configuration with SFC Scan

If Windows Update fails with an 'invalid configuration' error, corrupted system files are often t...

How to Change DNS Settings for Windows Activation Issues

If Windows fails to activate and you see errors like '0x8007232B' or 'We can't activate Windows o...