its works with my MF6140dn and Win10pro x64
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In start menu, search for Services. Find "RPC (locater)" file. Make sure it is running--not on manual. "Start" it.
Then restart PC. Next, make sure all apps are off and that your Canon MF toolbox is closed. Open task manager (contrl/alt/del). Expand to "see less" so you are seeing everything. Go to "Windows Processes" section. Find "Service Host: Windows Image Acquisition." Don't hit the left arrow to expand it. Just click to highlight it. Then "End task.
" Check "abandon data." "Shut down." Exit task manager.
NOW--set your MF4150 to scan. Put your doc in. Open your MF4150 toolbox on PC. IT WORKS!
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