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Old 05-20-2016, 06:32 AM   #1
sysigy
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Question OpenCL.dll missing

I've just updated my work PC to Windows 10 Pro x64.

Installed the latest NVidia drivers.

When I try to Fold on the GPU I am getting an error message telling me that the machine is missing OpenCL.dll.

I've checked to see if the file exists by searching C:\Windows and have found it in the C:\Windows\System32 folder and the C:\Windows\SysWOW64.

Does anyone know how to fix this?


thanks,

Last edited by sysigy; 05-20-2016 at 12:54 PM.
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Old 05-20-2016, 07:25 AM   #2
N64link
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I got this a few times, I had to manually delete F@H files and directories after a standard uninstall. Then I reinstalled and it seemed to clear it up.
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Old 05-23-2016, 02:41 AM   #3
sysigy
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Quote:
Originally Posted by N64link View Post
I got this a few times, I had to manually delete F@H files and directories after a standard uninstall. Then I reinstalled and it seemed to clear it up.
I did a reinstall but didn't do a manual cleanup... will try that when I am back in the office on Monday.

Thanks

Additional Comment:

Quote:
Originally Posted by N64link View Post
I got this a few times, I had to manually delete F@H files and directories after a standard uninstall. Then I reinstalled and it seemed to clear it up.
Quote:
Originally Posted by sysigy View Post
I did a reinstall but didn't do a manual cleanup... will try that when I am back in the office on Monday.

Thanks
I tried the manual cleanup / reinstall this morning, didn't fix the problem.

What I did in the end was delete the OpenCL.dll from System32 and SysWOW64 folders and then reinstalled the nVidia drivers.

Problem solved

Apparently when upgrading Windows from 7 or 8.1 to 10 the OpenCL.dll can get corrupted, even if you reinstall the nVidia drivers it won't touch the OpenCL.dll so by manually deleting the file from the 2 above directories the nVidia installer will then put in the file fresh.

Last edited by sysigy; 05-23-2016 at 07:06 AM. Reason: Automerged Doublepost
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Old 05-23-2016, 05:50 AM   #4
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Correct ^^^ or just uninstall, use a driver cleaner then Reinstall latest Nvidia drivers . This is how ive fixed this issue twice now
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