⚡ Quick Answer:

Uninstall via Settings. Then press Win + R, type %appdata%, and delete the Piriform folder. Finally, open Registry Editor and delete HKEY_LOCAL_MACHINE\SOFTWARE\Piriform to remove all traces.

You uninstalled CCleaner from the Control Panel, emptied your recycle bin, and thought you were finally done with it. But wait—why is "CCleaner Browser" still launching when you click a link? Why are there still folders named "Piriform" hidden in your C: drive?

Many blogs say a standard uninstall is enough. I'll be blunt: it is not. The free version often secretly bundles adware like "CCleaner Browser" and leaves deep residual files in your AppData to track your system. Even if you uninstall the main app, the browser stays behind silently in the background. Today, we are going to rip it out completely by manually checking your AppData folders.

💡 Jeet's Smart Tip

Most people don't know this, but the bundled 'CCleaner Browser' often acts like malware. It refuses to uninstall if its background process is running. You must kill it in Task Manager first.

Step 1: The Basic (But Flawed) Uninstall

Let's start with the obvious. Go to your Windows Settings > Apps > Installed Apps. Find CCleaner and click Uninstall. But here is the trick: you also need to search for CCleaner Browser in that exact same list and uninstall it separately.

If you get an error saying the browser cannot be uninstalled because it is open, press Ctrl + Shift + Esc, find it in the Task Manager, and hit "End Task" before trying again.

Step 2: Hunting Down the Hidden Folders

Uninstalling the app does not delete the cache files. You need to manually hunt them down.

Press Windows Key + R to open the Run dialog.
Type %appdata% and hit Enter.
Scroll until you see a folder named Piriform or CCleaner. Right-click and delete it.
Press Win + R again, but this time type %localappdata%. Delete the Piriform folder here as well.

Step 3: The Registry Cleanup

This is where the real deep cleaning happens. However, before you touch the registry, please read the official Microsoft guide on Registry safety.

Press Win + R, type regedit, and press Enter.
Navigate to HKEY_LOCAL_MACHINE\SOFTWARE
Find the Piriform folder. Just right-click that folder and hit delete.
After that, head over to HKEY_CURRENT_USER\Software and trash the Piriform folder you see there as well.

Give your computer a quick restart. That's it—you've officially ripped out every last trace of the program.

The Lazy Way: Using Revo Uninstaller

If poking around in the Registry makes you nervous, I totally get it. You can skip the manual hunt and just run a tool like Revo Uninstaller instead.

These tools are specifically designed to monitor where software installs files on your hard drive. When you tell Revo to remove CCleaner, it runs the standard uninstaller first. Then, it actively scans your entire C: drive and the Windows Registry for any leftover folders, temporary files, or orphan registry keys. It presents them in a list, and you can delete them all with a single click.

This is generally the method I recommend for beginners. It achieves the exact same result as hunting down the "Piriform" folders manually, but with zero risk of accidentally deleting a critical system file.

Why is CCleaner Browser So Hard to Remove?

One of the most frustrating things about the free version is the bundled software. Often, users don't realize they agreed to install "CCleaner Browser" during the initial setup because the checkbox was pre-selected in small text.

This browser embeds itself deeply into Windows to set itself as the default handler for PDF files and web links. It also runs a background update service. If you try to uninstall it while the update service is running, Windows will block the uninstallation. This is why you must always open Task Manager and end any process with "Browser" or "CCleaner" in the name before attempting to remove it via the Control Panel.

Frequently Asked Questions

Can I just delete the CCleaner folder in Program Files?

Absolutely not. Deleting a program's main folder without running the official uninstaller will corrupt your Windows Registry. Windows will still think the program is installed, but it won't be able to find the files. You will get constant error popups every time you start your computer. Always use the Windows "Add or Remove Programs" menu first.

Will removing CCleaner speed up my computer?

If you were using the free version with active monitoring turned on, then yes, removing it will free up background RAM and stop unnecessary disk usage. However, if your computer was already severely bloated with temporary files and browser cache, removing the cleaning tool means those junk files will start piling up again.

Does Windows 11 need a registry cleaner?

Modern versions of Windows are actually very good at managing their own registry. Unlike the Windows XP days, a slightly bloated registry won't slow down Windows 11. Most IT professionals agree that registry cleaners are mostly unnecessary today, and the risk of deleting an important key outweighs the microscopic performance benefit.

Want a Cleaner PC Without the Bloatware?

I completely understand why you removed the free version. It installs unwanted browsers, pushes daily popups, and leaves junk files behind. But your PC still needs proper maintenance and safe driver updates.

That is exactly why professionals only use the CCleaner Professional Plus license. It removes all bundled bloatware, has zero ads, and respects your privacy with premium silent background cleaning. Stop downloading risky free versions. Get the official, clean Pro experience today.

🛒 Buy CCleaner Professional Plus Key for ₹1,199

Written by Jeet Kaur

Jeet is the Founder of JeetSoft and a Digital Commerce Expert. With a background in HDFC Digital Banking, she specializes in software troubleshooting and e-commerce strategy, helping Indian businesses access premium tools safely.

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