What does the qtplugin.exe file do?
The qtplugin.exe process is also known as Default File and is a part of DefaultApp. This software is produced by Default Company. An obsolete or defective version of qtplugin.exe can cause problems for your computer that can range from slowness to error messages such as these:
- Default File has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- Default File has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 10, 8, 7)
- qtplugin.exe has encountered a problem and needs to close. (Windows XP)
- Access violation at address FFFFFFFF in module qtplugin.exe. Read of address 00000000.
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What you should know about qtplugin.exe Default File
qtplugin.exe is not a Windows system file and is known to frequently cause computer problems. Qtplugin.exe is found in the C:\Windows\System32 directory.
Frequently occurring are file sizes such as 703,488 bytes (12% of all these files), 314,880 bytes as well as 6 other variants.
Windows starts the process each time that the computer boots up (Registry: MACHINE\Run, Run). The qtplugin file is not part of the Windows operating system. There is no internal description of the file. It is not a Windows system file, but it is nontheless located in the C:\Windows folder. The program executes in the background, and can only be terminated using Windows Task Manager. Qtplugin.exe is capable of transmit information from computer to the Internet as well as record keystrokes. For this reason, 69% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
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 qtplugin.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 qtplugin?
|Trojan-Backdoor (further information...) |
|It starts up on my computer each time I start it, with the title "sysreg", but I found out it's real name was qtplugin.exe |
|SUPERAntiSpyware detects it as rootkit, was located in C:\WINDOWS\SYSTEM32\QTPLUGIN.EXE |
Summary: However, one user considers this to be a suspicious process and would like to get rid of it. For this reason, 2 users have already deleted qtplugin.exe. source: file.net
How to uninstall DefaultApp
To remove Default File from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. In Windows 8, look for Control Panel.
- Click Control Panel.
- Click Uninstall a program.
- Look for DefaultApp in the list of available programs.
- Click Uninstall.
How to tell if qtplugin.exe (Default File) 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 Default File. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Default File 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 qtplugin.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.