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My IBM Thinkpad R 40 does not recognize the CD-ROM after I reinstalled the original Windows XP. (Before the reinstall it worked without problems).

The BIOS says no drivers are installed, but I did not find the drivers online (at least not in a reliable and serious webpage).

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Have you installed the mainboard drivers (maybe the CD-ROM driver is included)? Have you enforced "Search for new hardware"? – John Smithers Jul 16 '09 at 8:27
How did you install Windows XP without the cdrom? – Stefan Thyberg Jul 16 '09 at 8:43
Is it detected in Disk Management? – Stefan Thyberg Jul 16 '09 at 9:14
I found a long discussion of it here: but alas, no solution. – Stefan Thyberg Jul 16 '09 at 9:22
@Stefan, first the CD rom worked before the reinstall. Second, there is a RO image of the original Operating System in the hard disk, so you don't need the CD rom to get a factory resinstall – flybywire Jul 16 '09 at 11:13

You can download the original CD driver for your Thinkpad from Lenovo's website, along with any other drivers that you may wish to update.

If, after you have installed and restarted, the CD drive is still not appearing, have a look at this Microsoft KB article, titled 'Your CD drive or DVD drive is missing or is not recognized by Windows or other programs'.

The webpage hosts a FixIt tool that may resolve your problem.

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