84,488,480 programs installed

Should I remove CCleaner?

What percent of users and experts removed it?
24% remove it76% keep it
Overall Sentiment
Fair
What do people think about it?
(click star to rate)
How common is it?
Global Rank #5,568
United States Rank #7,002
Reach 0.0866%
Lifespan of installation (until removal)
< 9.25 days
272.81 days >
Average installed length: 143.34 days

Versions

VersionDistribution
v3.26.1888 0.06%
v 4.13.4693 0.06%
v 4.0.0.4064 0.06%
5.61.7392 0.06%
5.60.7307 0.06%
5.43 0.12%
5.42 0.06%
5.41 0.41%
5.40 0.06%
5.38 0.06%
5.37 0.06%
5.31 0.06%
5.30 0.06%
5.28 0.06%
5.27 0.18%
5.26 0.06%
5.25 0.18%
5.24 0.06%
5.23 0.06%
5.22 0.06%
5.20 0.06%
5.19 0.12%
5.17 0.18%
5.14 0.23%
5.13 0.18%
5.11 0.06%
5.09 0.23%
5.08 0.12%
5.07 0.12%
5.06 0.06%
5.05 0.12%
5.04 0.06%
5.03 0.06%
5.02 0.23%
5.01 0.23%
5.00 0.18%
4.19 0.12%
4.18 0.29%
4.17 0.12%
4.16 0.06%
4.13 0.18%
4.12 0.06%
4.11 0.12%
4.09 0.06%
4.08 0.06%
4.07 0.12%
4.06 0.06%
4.05 0.06%
4.04 0.06%
4.03.4151 0.06%
4.03 0.06%
63 versions

CCleaner

Overview

CCleaner is a program developed by Piriform. The most used version is v3.26.1888, with over 0% of all installations currently using this version. Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The main program executable is ccleaner64.exe. The software installer includes 51 files and is usually about 11.05 MB (11,590,103 bytes). CCUpdate.exe is the automatic update component of the software designed to download and apply new updates should new versions be released. In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 33% of users of CCleaner come from the United States, it is also popular in Russia and UA.

Program detailsProgram details

URL: www.dytoshare.us
Installation folder: C:\Program Files\ccleaner
Uninstaller: C:\Program Files\CCleaner\Uninstall.exe
Estimated size: 11.05 MB
Language: English (United States)

Program filesFiles installed by CCleaner

Program executable:ccleaner64.exe
Name:CCleaner
Path:C:\Program Files\ccleaner\ccleaner64.exe
MD5:1abde68b7713b3daf70bfc0de4c15f52
Additional files:
  • Uninstall.exe - CCleaner v5.00.5050
  • CCUpdate.exe - Piriform Updater (CCleaner emergency updater)
  • CCleaner.exe - CCleaner
  • uninst.exe - CCleaner Installer
  • branding.dll - branding Dynamic Link Library
  • CCEnhancer.exe (by SingularLabs) - CCEnhancer
  • lang-1049.dll
  • lang-1058.dll

Program behaviorsBehaviors exhibited

5 Scheduled Tasks
  • CCleaner.exe is scheduled as a task with the class '{2CE5F6B7-1349-43FF-A90B-2C73E1F0E916}' (runs on registration).
  • CCleaner64.exe is scheduled as a task with the class '{73643B3D-134F-4147-AB89-446E1B259CAF}' (runs on registration).
  • CCEnhancer.exe is scheduled as a task with the class '{7E193F2B-8189-447F-8350-3F423253EA95}' (runs on registration).
  • CCUpdate.exe is scheduled as a task named 'CCleaner Update' (runs daily at 18:17).
  • uninst.exe is scheduled as a task with the class '{633F8ED2-DEAC-4FD0-9772-548A7DF6ED34}' (runs on registration).
3 Scheduled Tasks (Boot/Login)
  • CCleaner64.exe is automatically launched at startup through a scheduled task named CCleaner Monitoring_Reg_HKCURun_S-1-5-21-716152370-2729585503-2280685889-1001.
  • CCleaner.exe is automatically launched at startup through a scheduled task named 4.
  • CCUpdate.exe is automatically launched at startup through a scheduled task named CCleaner Update.
3 Startup Files (User Run)
  • CCEnhancer.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'CCEnhancer' and executes as C:\Program Files\CCleaner\CCEnhancer.exe /AUTO.
  • CCleaner.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'CCleaner' and executes as "C:\Program Files\CCleaner\CCleaner.exe" /AUTO.
  • CCleaner64.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'CCleaner' and executes as "C:\Program Files\CCleaner\CCleaner64.exe" /AUTO.
3 Startup Files (All Users Run)
  • CCleaner64.exe is loaded in the all users (HKLM) registry as a startup file name 'CCleaner Monitoring' which loads as "C:\Program Files\CCleaner\CCleaner64.exe" /MONITOR.
  • CCleaner.exe is loaded in the all users (HKLM) registry as a startup file name 'CCleaner Monitoring' which loads as "C:\Program Files\CCleaner\CCleaner.exe" /MONITOR.
  • CCEnhancer.exe is loaded in the all users (HKLM) registry as a startup file name 'CCEnhancer' which loads as C:\Program Files\CCleaner\CCEnhancer-3.9.exe /AUTO.
2 Windows Firewall Allowed Programs
  • CCleaner.exe is added as a firewall exception for 'C:\Program Files\CCleaner\CCleaner.exe'.
  • CCUpdate.exe is added as a firewall exception for 'C:\Program Files\CCleaner\CCUpdate.exe'.

Program resource utilizationResource utilization averages

CCleaner.exe
Memory:6.63 MB
21.09 MB average
Total CPU:0.1251704236%
0.031193% average
Kernel CPU:0.06746379%
0.016088% average
User CPU:0.05770663%
0.015104% average
CPU cycles/sec:123,981,302
8,062,084 average
I/O reads/min:417.74 MB
435.61 KB average
I/O writes/min:40.39 KB
105.02 KB average
CCleaner64.exe
Memory:20.81 MB
Total CPU:0.0052068374%
Kernel CPU:0.00226411%
User CPU:0.00294273%

How do I remove CCleaner?

You can uninstall CCleaner from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program CCleaner, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove CCleaner.

HOW IT STARTS
Automatically starts? Yes
(Found in the run registry)
 
USER ACTIONS
Uninstall it 24%
Keep it 76%
 
GLOBAL RANK
#5,568

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 50.76%
Windows 10 45.37%
Windows XP 3.75%
Windows Vista 0.12%
Which OS releases does it run on?
Windows 7 Ultimate 35.19%
Windows 10 Pro 13.28%
Windows 8.1 Pro 9.58%
Windows 7 Professional 6.17%
Windows 7 Home Premium 4.99%
Windows 8.1 Enterprise 4.99%

Distribution by countryGeography

33.11% of installs come from the United States
Which countries install it?
  United States 33.11%
  Russia 24.46%
  UA 13.18%
  Germany 9.11%
  Sweden 4.27%
  Poland 2.21%
  BY 1.91%
  Kazakstan 1.34%
  Netherlands 0.82%
  AZ 0.77%
  United Kingdom 0.77%
  Austria 0.72%
  Italy 0.51%
  Republic Of Moldova 0.41%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
ASUS 21.77%
Acer 16.91%
Hewlett-Packard 16.91%
Lenovo 13.15%
GIGABYTE 12.93%
Dell 6.63%
Samsung 6.30%
American Megatrends 1.55%
MSI 1.55%
Alienware 1.33%
Toshiba 0.99%
Common models
ASUS All Series 6.72%
HP Pavilion g6 Notebook P... 4.83%
HP Pavilion 17 Notebook P... 3.36%
ASUSTeK X550CC 3.15%
MSI MS-7721 2.10%
Acer Aspire 5755G 1.89%

About Piriform

Piriform is develops software for the Microsoft Windows whose products include CCleaner, Recuva, Defraggler, and Speccy.
Publisher URL: www.piriform.com

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