May have un-installed drive. Help?

I used this tutorial to fix my disc formatting problem that occured during disc burning sessions and un-installed my Primary and Secondary IDE channels. The tutorial said that after I restart the computer, it should re-install the deleted channels, however it doesn't, and as a result my CD-Rom drive disappeared! Help please?

 

is there an error code & an exclamation mark in device manager?

 

there was an exclemation mark, but I deleted it :/

 

restart the computer so windows will find & load it's driver which it probably won't. after restart than go into device manager to see if exclamation mark is there & is there an error code. if there is an error code than post it here.

 

I restarted the computer, however I checked the device manager and there are no exclemation marks nor error codes:/

 

is the cd-rom still missing or what?

 

The tutorial is the proper way to do it. If it didn't correct the problem, your burner may be on its way out.