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Windows startup programs - Browse database

If you're frustrated with the time it takes your Windows 10/8/7/Vista/XP PC to boot and then it seems to be running slowly you may have too many programs running at start-up - and you have come to the right place to identify them. This is the original start-up programs (as opposed to processes/tasks) list - one of the most accurate and comprehensive. Services are not included - see below. For further information on this and how to identify and disable start-up programs please visit the Introduction page.

See here for further information on random entries - which are typically added by viruses and other malware or unwanted programs.

Last database update :- 31st May, 2017
51499 listed

Entries are sorted by the Command/Data field. Alternatively, you can search the full database or use the alphabetical index on that page.

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Startup Item or Name Status Command or Data Description Tested
OriginalDocument.scrXOriginalDocument.scrDetected by Malwarebytes as Trojan.MSIL. Note - the file is located in %UserStartup% and its presence there ensures it runs when Windows startsNo
proxim_orinoco_11abgYorinoco.exeProxim ORiNOCO 11a/b/g PCI Card wireless configuration utilityNo
OrixNeTXorixnet.exeDetected by Intel Security/McAfee as RDN/Generic Proxy!j and by Malwarebytes as Trojan.Banker.ENo
hotdlllXorkss.exeDetected by Intel Security/McAfee as RDN/PWS-Banker!ds and by Malwarebytes as Trojan.Banker.ASDNo
EsphXortu.exeDetected by Symantec as Adware.PurityScan - also see the archived version of Andrew Clover's pageNo
SystemRunXos.exeDetected by Malwarebytes as Trojan.Agent. The file is located in %Windir%\WebNo
Windows Security Center Notification ApplseXos.exeAdded by a variant of the RBOT-GLR WORM!No
Microsoft OfficeNosa.exeOn older versions of MS Office this launches common Office components to help speed up the launch of Office programs. On slower machines it can be a resource hog and some users claim there's no difference with or without it - but it usually isn't required. This must be left enabled if you use the Microsoft Office Shortcut Bar (MSOFFICE.EXE) and have set it to load at startup. Available via Start → All ProgramsYes
Microsoft Office quick launchXOSA.exeDetected by Trend Micro as BKDR_VBOT.A. Note that OSA.exe was used in older versions of Office to launch common components to help speed up the launch but it is no longer normally used - see here. This file is located in a valid MS Office 2003 (aka Office 11) directory - %ProgramFiles%\Microsoft Office\OFFICE11 - and may overwrite a valid fileNo
Microsoft quick launchXOSA.exeAdded by a variant of BKDR_VBOT.A. Note that OSA.exe was used in older versions of Office to launch common components to help speed up the launch but it is no longer normally used - see here. This file is located in a valid MS Office 2003 (aka Office 11) directory - %ProgramFiles%\Microsoft Office\OFFICE11 - and may overwrite a valid fileNo
Office StartupNosa.exeOn older versions of MS Office this launches common Office components to help speed up the launch of Office programs. On slower machines it can be a resource hog and some users claim there's no difference with or without it - but it usually isn't required. This must be left enabled if you use the Microsoft Office Shortcut Bar (MSOFFICE.EXE) and have set it to load at startup. Available via Start → All ProgramsYes
Microsoft OfficeNOsa9.exeOn older versions of MS Office this launches common Office components to help speed up the launch of Office programs. On slower machines it can be a resource hog and some users claim there's no difference with or without it - but it usually isn't required. This must be left enabled if you use the Microsoft Office Shortcut Bar (MSOFFICE.EXE) and have set it to load at startup. Available via Start → All ProgramsYes
Office StartupNOsa9.exeOn older versions of MS Office this launches common Office components to help speed up the launch of Office programs. On slower machines it can be a resource hog and some users claim there's no difference with or without it - but it usually isn't required. This must be left enabled if you use the Microsoft Office Shortcut Bar (MSOFFICE.EXE) and have set it to load at startup. Available via Start → All ProgramsNo
Office SturtUpXosa9.exeDetected by Sophos as Troj/Clicker-EC. Note - do not confuse with the legitimate Microsoft office file of the same name which is normally located in %Program Files%\Microsoft Office\Office. This one is located in %Windir%No
Yo Mamma Osama InstallerUosama.exeWnad adwareNo
javaXOsbot-jar.scrDetected by Malwarebytes as Trojan.Agent.AI. The file is located in %AppData%No
OscarEditorUOscarEditor.exeA4Tech's X7 Oscar Editor mouse programming utility for their Oscar range of gaming miceNo
OscarX7Mouse5ModeUOscarEditor.exeA4Tech's X7 Oscar Editor mouse programming utility for their Oscar range of gaming miceNo
NSWosCheckUosCheck.exePart of Symantec's now discontinued Norton SystemWorks security and utility suite. Checks at boot-time to see if you are still using the same OS as your last Windows session and terminates if you are. If Windows has been upgraded it will attempt to download the relevant updates for the new OS on the first rebootYes
osCheckUosCheck.exePart of older versions of Symantec's security products including Norton 360, Norton Internet Security, Norton AntiVirus and the now discontinued Norton SystemWorks suite. Checks at boot-time to see if you are still using the same OS as your last Windows session and terminates if you are. If Windows has been upgraded it will attempt to download the relevant updates for the new OS on the first rebootYes
LMgrVolOSDUOSD.EXEDisplays a message or graphic on-screen when you press a corresponding volume "hotkey" - such as increase, decrease or mute. Nice but not required if you don't adjust things regularly - and also known to cause a system freeze in some casesNo
OSDUOSD.exeDisplays a message or graphic on-screen when you press a corresponding "hotkey" - such as volume increase/decrease, display brightness, etc. Nice but not required if you don't adjust things regularly - and also known to cause a system freeze in some casesNo
OsdMaestroUOSD.exeDisplays a message or graphic on-screen when you press a corresponding "hotkey" on some HP machines - such as volume increase/decrease, display brightness, etc. Nice but not required if you don't adjust things regularly - and also known to cause a system freeze in some casesNo
OsdMaestroOSD.exeUOSD.EXEDisplays a message or graphic on-screen when you press a corresponding "hotkey" on some HP machines - such as volume increase/decrease, display brightness, etc. Nice but not required if you don't adjust things regularly - and also known to cause a system freeze in some casesNo
On Screen DisplayUOSD.EXEDisplays a message or graphic on-screen when you press a corresponding "hotkey" - such as volume increase/decrease, display brightness, etc. Nice but not required if you don't adjust things regularly - and also known to cause a system freeze in some casesNo
OsdMaestroUOSD64.exe"Provides an interface to configure onscreen display settings." For HP systems - see hereNo
LMgrOSDUOSDCtrl.exeOSD (on-screen-display) utility - part of Acer Launch Manager. Gives you control to customize the monitor to your liking...from sound, brightness, contrast, horizontal and vertical positions, phase, pixel clock, color and languageNo
Dialog Box AssistantNOSDEx.exeDialog Box Assistant from Duality Software. Helps with the standard Open and Save As dialog boxes by showing recently used files and foldersNo
Lub_KpCexWpDXbvcLulkwVCaLzXOSDIoNByCDRgSS.exeDetected by Sophos as Troj/Ranybus-A and by Malwarebytes as Trojan.AgentNo
OS FirewallXOSFirewall.exeDetected by Malwarebytes as Trojan.Agent.OSF. The file is located in %AppData%\Microsoft - see hereNo
OsGFVYbT.exeXOsGFVYbT.exeDetected by Malwarebytes as Trojan.FakeCC. Note - the file is located in %UserStartup% and its presence there ensures it runs when Windows startsNo
OrangeSharkNOSharkUpdater.exeOrange Shark updater - online games for all agesNo
osjk8sXosjk8s.exeDetected by Kaspersky as Virus.Win32.Virut.ce. The file is located in %AppData%No
loadXosk.exeDetected by Intel Security/McAfee as RDN/Generic.bfr and by Malwarebytes as Backdoor.Agent.DLH. Note - this entry modifies the legitimate HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows "load" value data to include the file "osk.exe" (which is located in %System%\dllhost) and also adds an illegal HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows "load" entry pointing to the same fileNo
OSK.SER242Xosk.exeDetected by Intel Security/McAfee as RDN/Generic.bfr and by Malwarebytes as Backdoor.Agent.DLHNo
OSKMACH1H5Xosk.exeDetected by Intel Security/McAfee as RDN/Generic.bfr and by Malwarebytes as Backdoor.Agent.DLHNo
ChromeXosk.exeDetected by Intel Security/McAfee as RDN/Generic.bfr and by Malwarebytes as Backdoor.Agent.DLHNo
OSLoaderXOSLoader.exeDetected by Symantec as Backdoor.CamKing. Note - activates your webcam if you have one to allow its author to spy on youNo
FlashXosmax.exeDetected by Intel Security/McAfee as RDN/Generic.dx!dfd and by Malwarebytes as Trojan.Banker.FLGenNo
osmsgXosmsg.exeDetected by Malwarebytes as Adware.Agent.CLK. The file is located in %CommonAppData%\WindowsMsgNo
Windows Communicator for NT/XPXosndyrn.exeDetected by Sophos as W32/Sdbot-CPK. Note - can terminate AV related processesNo
Memory Fox ProUoso.exeMemory Fox Professional browser memory manager that way it will free up system memory from browsers like Firefox that can use too much if left unchecked. Via "Options" on the tray icon you can select how often (from 1 to 60 minutes) the program will request the Windows Memory Manager to relinquish memoryYes
qazxswdfdfXosowsys16.pifDetected by Dr.Web as Trojan.MulDrop5.41385 and by Malwarebytes as Trojan.Agent.ENo
DailyPCCleanUOSPCSchedule.exeDaily PC Clean by Tuto4PC - "removes useless files or software that could make your computer less performant." Detected by Malwarebytes as PUP.Optional.DailyPCClean. The file is located in %ProgramFiles%\DailyPCClean. If bundled with another installer or not installed by choice then remove itNo
OneSafe PC CleanerUOSPCSchedule.exeOneSafe PC Cleaner by Avanquest Software - which "allows you to both boost your computer's speeds and defrag the hard drive, saving you valuable storage space. It automatically detects errors that cause your computer to slow down by performing a full system scan." Detected by Malwarebytes as PUP.Optional.OneSafePCCleaner. The file is located in %ProgramFiles%\OneSafe PC Cleaner. If bundled with another installer or not installed by choice then remove itNo
ospd_**_#Uospd_**_#.exe"Install OneSoftPerDay on your PC and access every day to free apps or at a reduced price of our partners." Detected by Malwarebytes as PUP.Optional.OneSoftPerDay - where ** represents a 2 letter country code (ie, us, ca, jp, pl) and # represents one or more digits. The file is located in %ProgramFiles%\ospd_**_#. If bundled with another installer or not installed by choice then remove it, removal instructions hereNo
startXOSPPSVC.EXEDetected by Dr.Web as Trojan.DownLoader11.17259 and by Malwarebytes as Trojan.Agent.MSNo
Svchost.exeXOSRS Main Build.exeDetected by Malwarebytes as Backdoor.Bot.E. The file is located in %AppData%No
ctfnom.exeXOSRSS.exeDetected by Sophos as Troj/Dloader-UQNo
windhost.exeXosrwin32.exeDetected by Sophos as Troj/Banker-CBNo

 

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Notes & Warnings

If you can help identify new entries and verify/identify those entries with a "?" status (especially hardware specific - such as laptops and motherboards) then please E-mail us (startups_at_pacs-portal_dot_co_dot_uk).

"Status" key:

Variables:

DISCLAIMER: It is assumed that users are familiar with the operating system they are using and comfortable with making the suggested changes. We will not be held responsible if changes you make cause a system failure.

WARNING: This is NOT a list of tasks/processes taken from the Task Manager (CTRL+SHIFT+ESC) "Processes" tab. This displays some startup programs AND other background tasks and "Services". These pages are concerned with startup programs from the common startup locations shown above ONLY. Please do not submit entries collected from this method as they will not be used. For a list of tasks/processes you should try the list at PC Pitstop, the Process Library from Uniblue or one of the many others now available.

Therefore, before ending a task/process via CTRL+SHIFT+ESC just because it has an "X" recommendation, please check whether it's in the registry or common startup locations first. An example would be "svchost.exe" - which doesn't appear in either under normal conditions but does via CTRL+SHIFT+ESC. If in doubt, don't do anything.

To avoid the database becoming too large, all malware entries are only shown using the registry version which is common to all Windows versions. Otherwise there would be multiple entries for popular filenames that viruses often use - such as "svchost.exe" above for example. Multiple malware can also use the same start-up entries, in this case only those with significant differences (such as file location) are repeated in this database.

As more than 25K entries in this database related to malware you should use a quality internet security package. Which ever you choose, keep it updated and get the latest version at least every two years.

There are a number of virus and malware entries listed in this database where specific removal instructions haven't been given. If this is the case then you could try ComboFix, a program written by sUBs that can remove many different types of Trojans and Worms. See here for a tutorial on how to use the program.

NOTE: A number of entries are repeated due to the way that different operating systems display startup items. For example, WinMe lists "POPROXY.EXE" as "Norton eMail Protect" in both MSCONFIG and the registry whereas WinXP lists it as "Poproxy" in MSCONFIG and "Norton eMail Protect" in the registry.

SERVICES: "Services" from the Windows 8/7/Vista/XP/2K/NT operating systems are not included. We fully understand that some programs with these OS's use "Services" as an alternative to load their component parts at startup but these are handled in a different way. We recommend you try BlackViper for information on services for the relevant operating systems.

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