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 An outdated or faulty version of prevhost.exe can cause problems for your computer, ranging from slowness to error messages like these:
- Preview Handler Surrogate Host has stopped working. Windows is checking for a solution to the problem... (Windows 11, 10, 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 11, 10, 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 (63% of all these files), 24,064 bytes, 15,360 bytes, 58,880 bytes or, as the case may be, 23,552 bytes.
This prevhost program does not appear as a visible window, but only in Task Manager. The file contains Microsoft's digital signature. This confirms its authenticity.
For this reason, 6% 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 9% 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 (42% of all these files), 24,064 bytes, 16,384 bytes or, as the case may be, 24,576 bytes. The file is part of the Windows operating system found in C:\Windows\. To verify its trustworthiness, Microsoft has provided it with an embedded certificate. The program executes in the background, and can only be terminated using Windows Task Manager.
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.
- Click the Windows Start Button. You can find it in the lower-left corner of the taskbar.
- Type '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 check if prevhost.exe (Preview Handler Surrogate Host) was uninstalled completely
After uninstalling, restart your computer. Then open Windows Explorer and check if a folder with the software name still exists under C:\Program Files. Also, check the Registry 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. Keep in mind that only a computer professional should delete entries in the Windows Registry directly.
Last but not least
If Windows is not working properly, startup is slow, or prevhost.exe is causing problems, a good Windows diagnostic tool may 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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