What does the QHActiveDefense.exe file do?
The QHActiveDefense.exe process is also known as 360 Total Security and is a part of 360 Total Security. This software is produced by QIHU 360 SOFTWARE CO. LIMITED. An obsolete or defective version of QHActiveDefense.exe can cause problems for your computer that can range from slowness to error messages such as these:
- 360 Total Security has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- 360 Total Security 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)
- QHActiveDefense.exe has encountered a problem and needs to close. (Windows XP)
- Access violation at address FFFFFFFF in module QHActiveDefense.exe. Read of address 00000000.
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What you should know about QHActiveDefense.exe 360 Total Security
QHActiveDefense.exe is not part of Windows, but it is important nonetheless. QHActiveDefense.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 914,344 bytes (22% of all these files), 928,168 bytes as well as 4 other variants.
It is the service "QHActiveDefense".
This process does not appear as a visible window, but only in Task Manager. The original file is digitally signed. Check your file. The original file has been signed by a trusted signature authority. This lets you check your copy to see if it is a counterfeit. The file is no part of Microsoft Windows. This process can initiate a network connection--either to the Internet or on your LAN. QHActiveDefense.exe is capable of track other applications. For this reason, 19% 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 QHActiveDefense.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 QHActiveDefense?
The file spreads very slowly and does not often make an appearance. Therefore, feedback from other users is not yet available.
Summary: source: file.net
How to uninstall 360 Total Security
To remove 360 Total Security from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. You find it in the lower left corner of the taskbar.
- Type the word uninstall.
- Click Add or remove programs.
- Now locate 360 Total Security in the list of displayed applications.
- Click the program, and then click Uninstall.
How to tell if QHActiveDefense.exe (360 Total Security) 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 360 Total Security. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for 360 Total Security 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 QHActiveDefense.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.