Missing opencv_core340.dll error solution for Windows

Please read the instructions carefully before you download the opencv_core340.dll.Take the proper steps to safely clean and repair windows errors.

1. Where should this file go? After you download opencv_core340.dll on your machine, paste it in directory where it missing, and also copy it to

Windows 95, 98, ME C:\Windows\System
Windows NT, 2000 C:\WinNT\System32
Windows XP, Vista, 7, 8 C:\Windows\System32
64-bit Windows C:\Windows\System64

If you can't find windows directory try:
a. Press and hold Windows key on your keyboard, then press button R.
b. Enter the command "cmd" and press Enter
c. In a command window enter the command "set systemroot" and press Enter. It will display system directory.
2. Go to "start" ==> "run" and type "regsvr32 opencv_core340.dll" to register the file to the system.

File Information
  • Nameopencv_core340.dll (opencv_core340.dl_)
  • CategoryOperating System > dll
  • Description

    OpenCV module: The Core Functionality

  • Filenameopencv_core340.zip
  • Filesize4.22 MB
  • Filetypezip (Mime Type: application/zip)
  • Rating 4.7 / 5 , 35 rating
  • MD5: ee5c461e0ffebfaac662d56fa1b4cad1
  • SHA1: 94949a6f329e40a237372e6ee627c6a2b1a5948c
  • SHA265: $5$rounds=5000$dlldownloadsyste$SGw6BAcRz.21JwdqdkaZlO94m/6HwgpKfxIFsPQmwY6

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All possible solutions

Got computer error message like:

"opencv_core340.dll crash"
"bad image"
"error loading"
"opencv_core340.dll was not found"
"the procedure entry point opencv_core340.dll error"
"opencv_core340.dll could not be located"
"Access Violation"
"Cannot register opencv_core340.dll"

at startup or shutdown or run program?
No "missing dll" anymore - Repair dll errors - How to fix windows dll corrupt on your windows xp,vista,2000/2003,win7, win8,win10

  • Download and install opencv_core340.dll.
  • Download and install the latest update.
  • Install windows updates automatically/regularly, allow Windows check updates in the background.
  • Reinstall the application.