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What does the spoolsv.exe file do?

The spoolsv.exe process is also known as Spooler SubSystem App or, as the case may be, mIRC and is a part of Microsoft Windows Operating System or, as the case may be, mIRC. This software is produced by Microsoft (www.microsoft.com) or, as the case may be, mIRC Co. (www.mirc.com). An obsolete or defective version of spoolsv.exe can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about spoolsv.exe Spooler SubSystem App

spoolsv.exe is a Windows system file. The file spoolsv.exe is found in the C:\Windows\System32 directory. Frequently occurring are file sizes such as 57,856 bytes (73% of all these files), 58,880 bytes as well as 21 other variants.
This spoolsv program does not have a visible window, and does not appear on the taskbar. The original file by Microsoft is digitally signed. So please check the file on your computer. For this reason, 10% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

spoolsv.exe is a system file used by Microsoft Windows, and appears in Windows Task Manager as a process named "Spooler SubSystem App." However, some viruses or Trojans use the same file name in order to remain undetected (such as Trojan Horse or, as the case may be, WS.Reputation.1 (recognized by Symantec), as well as Mal/FakeAV-BX (recognized by Sophos)).
To be really safe, you should scan your computer with two different anti-virus engines. You can use a free Anti-Malware scanner for this purpose.

Objectionable files with the same file name have the following characteristics:

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves spoolsv.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about spoolsv?

Printer Spooler Service
It keeps taking up my entire CPU, clogging the system. I have Windows2000, and I don't know how a printer spooler can use 90+ percent of my CPU for 10+ minutes!
Johnny B
Follow RMANN's direction. It was not a virus for me, WinXP. But it was 99% cpu. (further information...)

Summary: 293 users judge spoolsv.exe to be an essential file that should not be touched. 38 users consider it harmless. However, 57 users consider this to be a suspicious process and would like to get rid of it. For this reason, 108 users have already deleted spoolsv.exe. source: file.net

How to uninstall the program or mIRC

spoolsv.exe Spooler SubSystem App fix

To remove Spooler SubSystem App from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for the program or mIRC in the list of available programs.
  5. Click Uninstall.

How to tell if spoolsv.exe (Spooler SubSystem App) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of Spooler SubSystem App. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Spooler SubSystem App or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or spoolsv.exe is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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