Canon LBP7100Cn User Manual page 230

Open the folder in which the printer driver is included.
For a 32-bit operating system
Open the folders in the supplied CD-ROM: [English] - [32bit] - [Driver].
For a 64-bit operating system
Open the folders in the supplied CD-ROM: [English] - [x64] - [Driver].
If you are not sure whether you are using a 32-bit operating system or 64-bit operating system
"Basic Operations/Various Information for
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Open the INF file.
(1) Select the INF file.
(2) Click [Open].
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Click [OK].
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Click [Next].
Windows"