When you install AVG Free Antivirus, apart from crucial security components needed for functioning of AVG it will also install PC Analyzer component into your computer, because of that ‘Fix Performance’ tile appears on AVG main window.

When you click it, it scans your PC for registry errors, junk files, fragmentation errors, and broken shortcuts and once analysis is complete, it asks to download AVG PC TuneUp which you can use to fix errors find by it for one time for free, after that to use it you need to buy it.

After downloading PC TuneUp, install in your computer and run it. AVG Update Wizard searches for latest definitions available for tool and downloads them, install them after that when AVG 1-Click Maintenance dialog appears click ‘Start analysis now’.

AVG’s tool analyzes your system again and shows issues if found to fix, after reviewing them click ‘Run Maintenance’, it will automatically fixes those issues.

AVG PC TuneUp Start Center

Undoing AVG PC TuneUp Changes

Now if you want to undo one change or all changes made by AVG PC TuneUp to your computer

1. Click on Start Menu>All Programs>AVG PC TuneUp>All functions>Rescue Center click ‘Undo changes’,

2. Under ‘Tasks’, you can select backup (if created and exists) from ‘Undo changes’ to revert the changes by clicking ‘Restore’ or you can choose most recent System restore point from ‘System recovery’ to bring system to probability pre-installed state of PC TuneUp.

AVG Rescue Center backups in System Recovery

3. If no backups are found in Undo changes category then System Recovery>select Restore point (Backups) and Restore is the way to go.

Note: You can open Rescue Center from Start Menu using steps mentioned above even after expiry of AVG PC TuneUp trial version or license.