What does the prevhost.exe file do?
The prevhost.exe process is also known as Preview Handler Surrogate Host and is a part of Microsoft Windows Operating System. This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of prevhost.exe can cause problems for your computer that can range from slowness to error messages such as these:
- Preview Handler Surrogate Host has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- Preview Handler Surrogate Host 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)
- prevhost.exe has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module prevhost.exe. Read of address 00000000.
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What you should know about prevhost.exe Preview Handler Surrogate Host
prevhost.exe is part of Windows. The file prevhost.exe is found in the C:\Windows\System32 directory.
Frequently occurring are file sizes such as 31,232 bytes (71% of all these files), 24,064 bytes, 15,360 bytes, 23,552 bytes or, as the case may be, 58,880 bytes.
This file is part of the operating system. This prevhost program does not appear as a visible window, but only in Task Manager. It has been digitally signed by Microsoft itself to guarantee its authenticity. For this reason, 7% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
A prevhost.exe file has a 12% certainty of being dangerous if it is found in a subdirectory of C:\Windows. In this case, the file size is usually 31,232 bytes (40% of all these files), 24,064 bytes or, as the case may be, 16,384 bytes. The Windows operating system requires this file. The application does not appear as a visible window, but only in Task Manager. To verify its trustworthiness, Microsoft has provided it with an embedded certificate.
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 prevhost.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 prevhost?
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 the program
To remove Preview Handler Surrogate Host 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 the program in the list of displayed applications.
- Click the program, and then click Uninstall.
How to tell if prevhost.exe (Preview Handler Surrogate Host) 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 Preview Handler Surrogate Host. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Preview Handler Surrogate Host 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 prevhost.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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