Before we start, please read this important information on editing your system’s registry.

In the past, I wrote an article on Automating Disk Cleanup, this article is for users who still want to manually run the Disk Cleanup Wizard which you can find by navigating to: Start -> All Programs -> Accessories -> System Tools -> Disk Cleanup.exe

The Screencast

I have produced my very first Screencast for this How To! View the Disable Disk Cleanup Wizard Compression Calculation Screencast!

What This Does

This Registry Hack will disable the Disk Cleanup Wizard from calculating the space that could be saved by compressing the drive, which, if you have a large drive or a couple of drives, could take a while. It’s a time saver: it skips the calculation time and goes right to the dialog where you can choose what to clean.

The Disk Cleanup Progress Bar

Open the Registry Editor by hitting the Windows Key+R and typing: regedit

Navigate to this key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Explorer\VolumeCaches\Compress Old Files

In the right panel, double-click the (Default) key. Clear the text in the “Value data” text field.

The Registry Key For Disabling The Disk Cleanup Compression Calculation

Click the “OK” button and close the Registry! The next time you run the Disk Cleanup Wizard, you will jump directly to the Disk Cleanup dialog!

The Disk Cleanup Menu