The MyCleanPC diagnostic scan runs in minutes and shows you exactly what's accumulating on your Windows PC — before you pay anything. Here's what it looks at and how to make sense of the report.

What the scan actually checks

When you download and run the free MyCleanPC diagnostic tool, it examines several areas of your Windows installation. It looks for temporary files and cached data that have built up over time, browser tracking records that accumulate from everyday browsing, software that may be causing pop-ups or interfering with your system, and files that can affect how quickly your PC starts up or responds to commands.

The scan does not modify or delete anything at this stage. Its purpose is to produce a report: a clear list of what it found, organised by category, so you can see the scale of the problem before committing to anything.

Reading the scan results

Once the scan finishes, MyCleanPC presents a summary of what it found. You'll typically see categories such as junk files (measured in megabytes or gigabytes), tracking records (counted by number of items), and performance-affecting files. Each category shows you how much is present on your system.

The report is designed to be read without technical knowledge. You don't need to know what each individual file does — the categories give you a clear enough picture of where your PC is losing speed or privacy.

What happens next

The diagnostic scan is entirely free. No payment is required to run it, and you receive the full report regardless. If you decide you want to act on the results — to actually remove the junk files, clean the tracking records, and repair the performance issues — that requires activating the annual licence at £19.99/year.

Activation unlocks the repair and clean-up features. Once you activate, MyCleanPC works through the issues identified in your scan. The software is designed for Windows Vista, Windows 7, Windows 8 and Windows 10. Results vary depending on the condition of your system — the disclaimer on the site explains this clearly.

If you have questions at any point, the 24/7 support team is reachable by phone at 0800 018 3305, via live chat, or by email.