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Because the name winbidi.exe is not well-known, malware authors sometimes use it to hide their processes. A fake winbidi.exe might be located in C:\Windows\System32 or C:\Users\[YourName]\AppData\Roaming. If found there, treat it as highly suspicious.


In some specific builds of Windows 10 and Windows 11, users have reported winbidi.exe causing high CPU or Disk usage.

Why? This usually happens when:

How to fix High CPU usage:

  • Disable Bidirectional Support (Workaround):
  • Most common. When you install advanced printer drivers, they often include utilities for ink monitoring and maintenance. winbidi.exe is the background service that polls your printer via USB or network every few seconds to retrieve status updates.

    A legitimate winbidi.exe file resides in the following directory:

    C:\Windows\System32\winbidi.exe
    

    On 64-bit versions of Windows, you may also encounter a related file in:

    C:\Windows\SysWOW64\winbidi.exe
    

    The file is typically small—around 50 KB to 150 KB—and should have a digital signature from Microsoft Windows.