Canon EOS 1D Software Instruction Manual page 122

Uninstalling the Software
6
Delete [DRVDATA.BIN] and [DRVIDX.BIN] files.
7
Double-click the [Other] folder in the [INF] folder to open.
8
Delete the [Canon.IncCAP_1DM2.inf] file if it exists.
"1DM2" is displayed in place of "XXX" in the file name.
The [Canon.IncCAP_1DM2.inf] file may not exist depending on your computer
system.
The [INF] folder contains a large number of files. Mistakenly deleting the wrong files can
cause Windows to malfunction. Check the file names carefully before deleting any files.
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