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What does the cnab4rpk.exe file do?

The cnab4rpk.exe process is also known as Canon Advanced Printing Technology RPC Server Process and is a part of Canon Advanced Printing Technology. This software is produced by CANON INC (www.canon.com). An obsolete or defective version of cnab4rpk.exe 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 cnab4rpk.exe cnab4rpk.exe

cnab4rpk.exe is not part of Windows, but it is important nonetheless. Cnab4rpk.exe is found in the C:\Windows\System32 directory. Frequently occurring are file sizes such as 113,856 bytes (50% of all these files), 57,344 bytes or, as the case may be, 63,112 bytes.
This cnab4rpk.exe process does not appear as a visible window, but only in Task Manager. The original file is digitally signed. Check your file. Cnab4rpk.exe does not come from Microsoft and is not part of the operating system. This particular software is receiving or sending data on the LAN (your local network) or on the Internet. For this reason, 29% 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 cnab4rpk.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 cnab4rpk?

Canon Advanced Printing Technology RPC Server Process
Wanted
it is dangerous
kkkh

Summary: 2 users judge cnab4rpk.exe to be an essential file that should not be touched. source: file.net

How to uninstall Canon Advanced Printing Technology

To remove cnab4rpk.exe 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 Canon Advanced Printing Technology in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
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How to tell if cnab4rpk.exe (cnab4rpk.exe) 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 cnab4rpk.exe. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for cnab4rpk.exe 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 cnab4rpk.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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