CCleaner Not Opening/ Responding? [7 Best Fixes]

Published Categorized as How To, Windows 11
CCleaner Not Opening

You just wanted to clear some files with the help of CCleaner but upon clicking CCleaner won’t open?

Is that what you are going through?

If Yes!

Then you don’t need to worry as we have compiled a list of 7 easy solutions for you to get rid of CCleaner Not Opening in the guide below.

What Causes CCleaner Won’t Open?

The main cause behind the CCleaner won’t open is the damage done by malware or virus. As they make changes to the Registry editor leading to CCleaner not opening.

CCleaner Not Opening/ Responding? [7 Best Fixes]

Solution 1: Close Unwanted Programs

The first thing you can do is close unwanted programs as this will help you fix CCleaner Not Opening.

As there are too many programs running in the background that are using too much CPU.

So, let’s close unwanted programs:

  1. Press Ctrl + Shift + ESC keys to open Task Manager
  2. Now check which program is using more Network
  3. Right-click on that program and select End taskend task
  4. And check if the “CCleaner Won’t Open” is solved or not.

If not then continue to the next solution.

Read More: How To Recover Deleted Files On Windows 11?

Solution 2: Run the Application as Administrator On Windows 11

Running the CCleaner as an administrator on Windows 11 will definitely help you eradicate the ” CCleaner Not Opening” as it might lack the privileges required to run the Application.

Here is how you can run the CCleaner as an administrator:

  1. Open the Desktop.
  2. Then go to the CCleaner
  3. Right-click on the Launcher iconSony Vegas Pro Error Code 59 On Windows 11? 7 Easy Fixes
  4. menu will open
  5. Select “Run as administrator “

Now the program will start running smoothly.

If you are still facing “CCleaner Not Responding” then proceed to the next solution.

Read More: How To Change Resolution on Windows 11

Solution 3: Turn Off Windows Firewall On Windows 11

It is very important to turn off the Windows Firewall on Windows 11 when CCleaner Not Opening.

Also, this has worked for many users.

So, follow the steps below:

  1. Press Windows + I to open Settings
  2. From the left menu select “Privacy & Security
  3. Under the Security heading click on “Windows Security
  4. Privacy & Security > Windows Security window will open
    Windows firewall has blocked some features, windows firewall warnings, how to allow an app through firewall, windows firewall protection alert
  5. Select the “Firewall & network protection” option
  6. Select Public network and public network windows will openWindows firewall has blocked some features, windows firewall warnings, how to allow an app through firewall, windows firewall protection alert
  7. Find Microsoft Defender firewall 
  8. Click on the toggle in order to turn off the Windows firewallWindows firewall has blocked some features, windows firewall warnings, how to allow an app through firewall, windows firewall protection alert
  9. User Control prompt will appear and click “YESWindows Security, Windows firewall has blocked some features, windows firewall warnings, how to allow an app through firewall, windows firewall protection alert
  10. Now your Firewall is disabled successfully in Windows 11.

And if you are still facing CCleaner Won’t Open then try the next solution.

Read More: How to Zip a File In Windows 11?

Solution 4: Removing the CCleaner Entries from Registry Editor

If you are Windows 8 or Windows 10/11 Home Edition user you can use the registry editor to delete the affected CCleaner entries leading CCleaner Not Opening.

So, here’s what you need to do:

  1. Press Windows Key + R to launch the Run dialogue box.
  2. Type regedit and press Enter
    CCleaner Not Opening/ Responding? [7 Best Fixes]
  3. And follow this path(HKEY_LOCALMACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\)
  4. In the Registry Editor window double-click on the computer icon.
  5. You will see a number of folders and you need to double-click on HKEY_LOCAL_MACHINE
  6. Now you need to double-click on Software and then look for the Microsoft folder.
    Registry Editor Compattelrunner.exe
  7. Now double-click on Microsoft > Windows NT.
  8. Follow the above-mentioned path further and right-click the CCleaner entry key from the list of entries and select Delete
  9. After closing the editor try opening CCleaner.

If CCleaner Not Responding then continue to check file permission.

Read More: How To Open BIOS Settings On Windows 11?

Solution 5: Check the File Permissions

Some users were able to fix CCleaner not opening Windows 11 just by changing the file permissions to full control.

So, try the following steps:

  1. Right-click the CCleaner setup file and select Properties.
  2. In the Properties window, navigate to the Security tab and click on Edit.
  3. Tick the checkbox for Full Control under the Allow section.
    CCleaner Not Opening/ Responding? [7 Best Fixes]
  4. After saving the changes check if you get to fix CCleaner Won’t Open.

Anf if you are still facing the same issue then try the next solution.

Solution 6: Disable Antivirus

Sometimes the antivirus stops some function that is not harmful to the PC leading to CCleaner Not Opening.

But, the antivirus stops them due to their usual activity or some file looking like a virus. To stop the intervention of antivirus we have to put CCleaner on the exception list.

Consult your antivirus manufacturer’s manuals or website to get the specific steps for disabling the software.

If you are still facing the CCleaner Not Responding try contacting CCleaner.

Solution 7: Contact CCleaner Support

If none of the above solutions worked for you to solve ‘CCleaner Not Opening then, you can contact CCleaner support and let them know about your problem in detail.

Their team will respond to you within 24 hours.

CCleaner Not Opening

Hope all the above solutions help you to solve CCleaner Not Opening.

If still, you have a query feel free to share your experiences and question in the comments section

FAQs

What’s the latest version of CCleaner for Windows?

The latest version of CCleaner for Windows is 6.01.9825 and it’s available for download.

What happened CCleaner?

In September 2017, CCleaner 5.33 came with a Floxif trojan horse that could install a backdoor, enabling remote access to 2.27 million infected machines.

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