cd burner no longer listed by device manager

[mountainmike]

My son clicked on the enable dma check box under the settings tab in the Win/98 device manager. Win/98 told him he'd have to re-boot for the changes to take effect. When he did, Windows ka-poofed the burner from its list of devices.

I've tried 'add new hardware'. No luck. Windows does not detect a new plug and pray device. I've tried unplugging all the cables to the burner; re-booting; shutdown; plugging the cables back in; and re-booting, hoping that windows would detect a new device. No luck, and no luck again 'adding new hardware'.

I don't know what to try next. Any thoughts, anybopdy ?

 

[thebigguy128]

Try this....

1-Shut down
2-Disconnect the cd burner from the system.(power and ide)
3-Boot into SAFE mode.
4-Go to the device manager and Remove all instances of the cd-rom
5-Power down.
6-Boot into windows normally.
7-Power down.
8-Reconnect the cd-rom.
9-Boot into windows normally.

Note....don't do a soft boot here...power all the way down. Then power up. I usually wait 30-seconds after power down before restarting (don't know if that is actually necessary..but I do it anyway)

That should reinstall the cd-rom. If it does, let us know. If not, let us know as well and we'll try other things.

Dana

 

[mountainmike]

Thanks, Dana.... I will try this tonight.

 

[mountainmike]

I followed the 9 steps suggested, but Win/98 did not detect anything new on the last boot. I tried to 'add new hardware' and Win/98 detected a problem secondary IDE controller (yellow circle with an exclamation point), and eventually told me that the driver it had was the best one to use (still with the yellow circle error).

I changed the settings on the master IDE controller to use 'only the primary IDE channel'; re-booted; and then the secondary controller disappeared from the device manager list.

Then I shutdown the computer; disconnected the burner again; re-booted; and the E: burner, and the secondary IDE controller (both) were not on the device manager list. So, I went back into the device manager, and changed the settings on the master IDE controller to 'default'; shutdown; plugged the burner back in; re-booted; Win/98 did not detect anything new; and going thru 'add new hardware' Win/98 detected the same yellow circle problem with the secondary IDE controller again.

It seems like I can't get Win/98 to detect the burner, because it stumbles on the secondary IDE controller problem first.

Stumped again.

 

[killowhat]

Had this happen just yesterday on my old compaq; screwing around where I shouldnt, anyway I went into bios a reset default settings. so far so good, LOL PEARL

 

[thebigguy128]

Sorry to hear that Mike...
Yeah..try what Killowhat suggests. Another thing, you might try restoring your registry. At the dos prompt, type scanreg /restore and restore to a time when everything was working. (not real hopeful on this, but it is quick and painless and might work)

If that doesn't work, you can force windows to rebuild everything.

Go into device manager in safe mode and remove all hard drives, hard disk controllers, and everything under system devices. Power down. Restart normally...windows will rebuild everything you deleted. I wouldn't have anything hooked up to the secondary IDE controller at that point. AFter the series of reboots are done necessary to rebuild everything..then power down and reconnect the cd-burner.

Post back and let us know if any of these work.

Dana

 

[mountainmike]

I tried to reset the BIOS to 'Load Setup Bios'; nothing changed. I tried to remove the secondary IDE controller from device manager, and got a message that said the device was part of a multi-function device and could not be removed independently. I would have to remove the parent device too (the primary IDE bus master). Having already lost 1 device, I was a little wary of losing access to all of my disks.

So, I went out to Microsoft's Win/98 support center; searched for 'remove hard disk controller'; and found a Knowledge Base Article (202393) describing the problem I had had attempting to remove the secondary IDE controller. Its resolution suggested removing a particular folder in the registry.

I shut down my computer; disconnected the burner again;
re-booted; backed up the registry; and removed the folder under HKEY_LOCAL_MACHINE\ENUM\MF\CHILD0001 in the registry; shut-down the computer again; re-connected the burner again; re-booted, and viola! both the secondary IDE controller and the E: burner magically reappeared with no associated problems. Whew !

Thanks for pointing me in the right direction, Dana, and thank you, Perl, for taking the time to respond.