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How to eliminate sentinel driver problems

The sentinel.sys (Rainbow Technologies Sentinel driver) file is a Windows driver. Generally, drivers are used by Windows to enable internal components like graphic cards and drives, or external devices, such as printers, backup media or input devices.
Click here to check if you need to update your sentinel driver.

The sentinel.sys process is also known as Rainbow Technologies Sentinel Driver or, as the case may be, Sentinel System Driver (NT Parallel driver) and is a part of Rainbow Technologies Sentinel or, as the case may be, Sentinel Protection Installer. This software is produced by Rainbow Technologies (www.safenet-inc.com) or, as the case may be, SafeNet (www.safenet-inc.com). An obsolete or defective version of sentinel.sys 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 sentinel.sys Rainbow Technologies Sentinel driver

sentinel.sys is not a Windows system file and is known to frequently cause computer problems. The file sentinel.sys is found in the C:\Windows\System32\drivers directory. Frequently occurring are file sizes such as 73,216 bytes (28% of all these files), 76,288 bytes as well as 4 other variants.
If necessary, you can manually stop or start this driver in the Device Manager. The Device Manager can be found in Windows Control Panel under Hardware and Sound/Devices and Printers/Device Manager. The driver facilitates access to your computer's hardware and accessories. Sentinel.sys was developed by a so-called third party provider - and not by Microsoft. This process does not have a visible window, and does not appear on the taskbar. It is unusual for the service not to provide any indication of how and why it is required. sentinel.sys appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 33% 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 sentinel.sys. 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 sentinel?

Virtueller Gerätetreiber
Security Dongle Driver to protect Licensed Software (further information...)
This driver is used for LPT and USB security devices
This file appears to be a component of BDGuard.Sys a very dangerous form of spyware. Apparently installs over users systems and emulates the user. Installs keyloggers and system administrators passwords. User often does not know they are infected. The Real Player and Adobe acrobat are hijacked. Messenger is then associated with Real Player and Adobe Acrobat. Anything user does on machine apparently is sent in real time via video, sound, camera or microphone. Another reason TURN OFF what you are not using and disconnect from the internet. You never know who may be watching you or listening.
Bonnie D
driver for anti-piracy dongles
Jeffrey Dahmer

Summary: 3 users judge sentinel.sys to be an essential file that should not be touched. One user considers it harmless. However, 2 users consider this to be a suspicious process and would like to get rid of it. source: file.net

How to uninstall Rainbow Technologies Sentinel or Sentinel Protection Installer

To remove Rainbow Technologies Sentinel driver from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate Rainbow Technologies Sentinel or Sentinel Protection Installer in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
sentinel.sys Rainbow Technologies Sentinel driver fix

How to tell if sentinel.sys (Rainbow Technologies Sentinel driver) 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 Rainbow Technologies Sentinel driver. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Rainbow Technologies Sentinel driver 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 sentinel.sys 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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