I have CUDA 5.0 and need to upgrade to CUDA 5.5. When I run the CUDA 5.5 Installer (default settings), it fails during installation of the CUDA Toolkit, and displays a dialog box with the following message:

"NVIDIA Installer Failed."

If I close the installer and try again, I get a different error:

"NVIDIA Installer Cannot Continue: Required Files Are Missing."

If I reboot and try again, I get the first message once again.

Is there a driver for 5.0 I need to uninstall for 5.5 to install? Any help is appreciated.

I'm using Windows 7 64-bit.

  • This installer should have a log. can you post the contents of that log?
    – Ramhound
    Oct 18, 2013 at 15:30
  • Where can I find the install log? (Windows 7)
    – t_carn
    Oct 21, 2013 at 13:16

1 Answer 1


Try this link


Alternatively, during installation, click custom installation, notice that some package are unavailable example "Cuda samples" etc, un-check those package that are not available.

Not sure why this answer insisted "must be at least 30 characters".

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