Home Possibly Unwanted Program Speedchecker PC Speed Up

Speedchecker PC Speed Up

Posted: August 29, 2014

Threat Metric

Ranking: 3,317
Threat Level: 1/10
Infected PCs: 276,726
First Seen: August 29, 2014
Last Seen: October 17, 2023
OS(es) Affected: Windows


The Speedchecker PC Speed Up software is promoted on Pcspeedup.com as a great utility to scan your OS for problems related to performance, out-dated drivers and bad registry keys. The Speedchecker PC Speed Up has a trial version that you may encounter in a freeware bundle with BenchUpdater and PCBackupWizard. The Speedchecker PC Speed Up software is developed by Optimal Software s.r.o. and is published by Speedchecker Limited, which you can contact on the 888-986-8371 phone line to seek help with the program. However, this article is not an advertisement of the Speedchecker PC Speed Up software, and you should know that Speedchecker PC Speed Up is deemed as a Potentially Unwanted Program (PUP) due to its aggressive notifications.

The trial version of Speedchecker PC Speed Up allows users to perform a free scan and read a report on their system state of health that includes a list of startup apps that can be disabled as well as a list of bad registry entries and dead shortcuts. PC users that run the trial version of Speedchecker PC Speed Up may be provided with the option to disable unwanted startup apps for free. Other problems can be resolved with the Speedchecker PC Speed Up tool after buying a premium license for $29. You should take into consideration that most operations that you can do with Speedchecker PC Speed Up can be done with instruments that are built into Windows itself. For example, the Speedchecker PC Speed Up software allows users to turn off unnecessary services and improve their boot-time. You can do that with Services.msc, which can be found in the collection of Administrative Tools in Windows. Additionally, you can launch MSCONFIG to disable unwanted background services and free up RAM for games, video/audio players and image manipulation programs. Computer experts summarize that the Speedchecker PC Speed Up software may not be worth paying $29 for. You may wish to uninstall the Speedchecker PC Speed Up software and clean residual files with the help of a reliable anti-spyware program.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



%PROGRAMFILES%\Velocidade Do PC\PCSUService.exe File name: PCSUService.exe
Size: 417.07 KB (417072 bytes)
MD5: cd72cf2886ee240e20dab736ea09c4cf
Detection count: 9,059
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\Velocidade Do PC
Group: Malware file
Last Updated: July 6, 2020
C:\Program Files (x86)\PC Speed Up\PCSUSD.exe File name: PCSUSD.exe
Size: 405.8 KB (405808 bytes)
MD5: 4a30d41310065a4b75c87f538ce67feb
Detection count: 3,333
File type: Executable File
Mime Type: unknown/exe
Path: C:\Program Files (x86)\PC Speed Up\PCSUSD.exe
Group: Malware file
Last Updated: February 28, 2023
%PROGRAMFILES(x86)%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 338.88 KB (338888 bytes)
MD5: 6892ddd8f327cef9b7f622d60b4ad6fe
Detection count: 3,089
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\PC Speed Up\PCSUSD.exe File name: PCSUSD.exe
Size: 405.36 KB (405360 bytes)
MD5: 53f56764b0f339df68f91d12a2805c08
Detection count: 155
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\PC Speed Up
Group: Malware file
Last Updated: November 25, 2016
%PROGRAMFILES(x86)%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 277.8 KB (277808 bytes)
MD5: d9dd0ec1d14c850184f791b9fa154a3c
Detection count: 119
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES(x86)%\PC Speed Up\PCSUSD.exe File name: PCSUSD.exe
Size: 405.8 KB (405808 bytes)
MD5: 2a2114fe275b404d202f49f4713770d5
Detection count: 108
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: November 25, 2016
%PROGRAMFILES(x86)%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 342.47 KB (342472 bytes)
MD5: eaab37904a786fcb914d0453258777b3
Detection count: 89
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 279.33 KB (279336 bytes)
MD5: 6fcd17b444ea707182ee479a38a9106c
Detection count: 63
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%TEMP%\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 337.19 KB (337192 bytes)
MD5: 205c615e7aa1a7dd47a201b319abc1f5
Detection count: 63
File type: Executable File
Mime Type: unknown/exe
Path: %TEMP%
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\Zrychleni Pocitace\SpeedCheckerService.exe File name: SpeedCheckerService.exe
Size: 21.44 KB (21448 bytes)
MD5: c32e731fce66cd7e4955fe4eda179323
Detection count: 56
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\Zrychleni Pocitace
Group: Malware file
Last Updated: April 15, 2016
%PROGRAMFILES(x86)%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 256.8 KB (256808 bytes)
MD5: d5474f88ecd8ef28fa2564a1e0c2d111
Detection count: 40
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\Zrychleni Pocitace\SpeedCheckerService.exe File name: SpeedCheckerService.exe
Size: 23.49 KB (23496 bytes)
MD5: 8711e96b1f59eca26996ac4a2ac18466
Detection count: 37
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\Zrychleni Pocitace
Group: Malware file
Last Updated: April 15, 2016
%PROGRAMFILES(x86)%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 276.27 KB (276272 bytes)
MD5: 38fbf4e87865b9d0cb7298fe3e64b1a6
Detection count: 23
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 279.33 KB (279336 bytes)
MD5: a555e731a5d96c8330148427805eb521
Detection count: 21
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES(x86)%\PC Speed Up\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 380.36 KB (380360 bytes)
MD5: 402c483904b66a6d5bfbc7c7e49d187c
Detection count: 14
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\PC Speed Up
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\Accelerer PC\PCSUNotifier.exe File name: PCSUNotifier.exe
Size: 264.49 KB (264496 bytes)
MD5: bd464485185ef9f92bb188fd668c27af
Detection count: 9
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\Accelerer PC
Group: Malware file
Last Updated: May 4, 2016
%PROGRAMFILES%\PC Speed Up\SpeedCheckerService.exe File name: SpeedCheckerService.exe
Size: 23.47 KB (23472 bytes)
MD5: 22c20fc3b2cb77a9e978aee1c47793be
Detection count: 9
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\PC Speed Up
Group: Malware file
Last Updated: January 16, 2020

More files

Registry Modifications

The following newly produced Registry Values are:

CLSID{3157E247-2784-4028-BF0F-52D6DDC70E1B}{6C42038D-817A-472C-8C2A-EF46F1DA576D}{873C7DA8-195D-4D5A-B830-C5E2831901EA}{B89F5C49-51DB-4974-AB5A-E25901AA339C}{E9B5B0D2-D08A-49FC-8B5C-159B60BAA268}File name without pathAccelerer PC.lnkAcelerar el PC.lnkhttp_pcspeedup.com_0.localstoragePC Speed Up.lnkpcspeedup[1].exepcspeedup[1].xmlPrzyspiesz Komputer.lnkVelocidade Do PC.lnkwww.accelererpc[1].xmlZrychlenie PC.lnkRegexp file mask%WINDIR%\System32\Tasks\PC SpeedUp Service Deactivator%WINDIR%\Tasks\PC SpeedUp Service Deactivator.jobHKEY..\..\..\..{RegistryKeys}SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\accelererpc.frSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\pcspeedup.comSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\www.accelererpc.frSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\www.pcspeedup.comSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\accelererpc.frSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\pcspeedup.comSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\www.accelererpc.frSOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\www.pcspeedup.comSOFTWARE\Classes\PCSU.RegistrySOFTWARE\Classes\PCSU.Registry.1SOFTWARE\Classes\PCSU.SysUtilsSOFTWARE\Classes\PCSU.SysUtils.1Software\Microsoft\Internet Explorer\DOMStorage\pcspeedup.comSoftware\Microsoft\Internet Explorer\DOMStorage\www.pcspeedup.comSOFTWARE\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION\SpeedCheckerService.exeSOFTWARE\Microsoft\Tracing\PCSUSpeedTest_RASAPI32SOFTWARE\Microsoft\Tracing\PCSUSpeedTest_RASMANCSSOFTWARE\Microsoft\Tracing\SpeedCheckerService_RASAPI32SOFTWARE\Microsoft\Tracing\SpeedCheckerService_RASMANCSSOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\CompatibilityAdapter\Signatures\PC SpeedUp Service Deactivator.jobSOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\CompatibilityAdapter\Signatures\PC SpeedUp Service Deactivator.job.fpSOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\PC SpeedUp Service DeactivatorSoftware\Microsoft\Windows\CurrentVersion\Run\PCSpeedUpSOFTWARE\Speedchecker LimitedSoftware\Speedchecker Limited\PC Speed UpSOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION\SpeedCheckerService.exeSOFTWARE\Wow6432Node\Microsoft\Tracing\PCSUSpeedTest_RASAPI32SOFTWARE\Wow6432Node\Microsoft\Tracing\PCSUSpeedTest_RASMANCSSOFTWARE\Wow6432Node\Microsoft\Tracing\SpeedCheckerService_RASAPI32SOFTWARE\Wow6432Node\Microsoft\Tracing\SpeedCheckerService_RASMANCSSOFTWARE\Wow6432Node\Speedchecker LimitedSOFTWARE\Wow6432Node\Speedchecker Limited\PC Speed UpSYSTEM\ControlSet001\services\PCSUServiceSYSTEM\ControlSet001\services\PCSUUCDRVSYSTEM\ControlSet002\services\PCSUUCDRVSYSTEM\CurrentControlSet\services\PCSUServiceSYSTEM\CurrentControlSet\services\PCSUUCDRVHKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..{Uninstaller}PCSU-SL_is1

Additional Information

The following directories were created:
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Accelerer PC%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Acelerar el PC%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\PC Speed Up%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Przyspiesz Komputer%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Velocidade Do PC%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Zrychlenie PC%ALLUSERSPROFILE%\Start Menu\Programs\PC Speed Up%APPDATA%\Microsoft\Windows\Start Menu\Programs\PC Speed Up%LOCALAPPDATA%\Microsoft\Silverlight\OutOfBrowser\Speedchecker.PCSpeedUp%PROGRAMFILES%\Accelerer PC%PROGRAMFILES%\Acelerar el PC%PROGRAMFILES%\PC Speed Up%PROGRAMFILES%\Przyspiesz Komputer%PROGRAMFILES%\Velocidade Do PC%PROGRAMFILES%\Zrychleni Pocitace%PROGRAMFILES%\Zrychlenie PC%PROGRAMFILES(x86)%\Accelerer PC%PROGRAMFILES(x86)%\Acelerar el PC%PROGRAMFILES(x86)%\PC Speed Up%PROGRAMFILES(x86)%\Przyspiesz Komputer%PROGRAMFILES(x86)%\Velocidade Do PC%PROGRAMFILES(x86)%\Zrychleni Pocitace%PROGRAMFILES(x86)%\Zrychlenie PC%UserProfile%\Local Settings\Application Data\Microsoft\Silverlight\OutOfBrowser\Speedchecker.PCSpeedUp%userprofile%\Documents\PCSpeedUp
Loading...