Yes, as evident by the file type icons, I do have a program that can open these files for me. But then it might have been a different version of the plugin. I know this has worked with Windows Vista 64-bit, I have used it. Where do I even begin to troubleshoot this problem, on a low level? Like, where are these 'plugins' installed in Windows? And what 'bit' version is Windows Explorer in 64-bit Windows? Is it a 32-bit program or a native 64-bit program? I fear that this could be a 'bit' compatibility issue, like so many times before with Windows and Microsoft. I know it sounds sick, but could it be that Windows 7 is not supported if SP1 is installed? I will try uninstalling and reinstalling back and forth a few times, get the latest updates from Windows Update installed.

Could this be the problem? It only says 'Windows 7'. Higher, with SSE 2 extensions or compatible) Memory: 1 GB of RAM or Processor: Intel Pentium 4 processor equivalent or higher (1.6 GHz or The Microsoft Camera Codec Pack requires the following: Installing this package will allow supported RAW camera files to be Other software that is based in Windows Imaging Codecs (WIC). The Microsoft Camera Codec Pack enables the viewing of a variety ofĭevice-specific file formats in Window Live Photo Gallery as well as Windows Photo Viewer can't open this picture because ĩ721.0 Just to make sure that this was not only related to thumbnails, I tried opening one of the files with Windows Photo Viewer. Repaired, requested reboot, grated, rebooted, logged in, the problem remains. I chose to do a repair install through the Control Panel.

Back in Windows Explorer, my CR2 files are still not getting any thumbnail previews. I used the 64-bit installer MicrosoftCameraCodecPack-圆4.msi to install it on Windows 7 SP1 64-bit and rebooted.

Because the Windows Update was not offering this as update after several update checks, I went online and downloaded the Microsoft Camera Codec Pack (.0) from the download center.

Windows 7 codec pack