Tip & How-To about Microsoft Windows Vista Ultimate Edition
Try first disconnecting power cable for ten minutes, if computer is a laptop also remove the battery at the same time. This will
If there is a disk inside the DVD drive, remove the disk.
Try doing a system restore, here you get instructions for XP, Vista is similar: How to perform System Restore on Windows...
If all this does not work open the BIOS setting menu at startup and check if the DVD is detected.
In BIOS also ensure that the optical driver is not manually disabled, and that SATA port (if using serial ATA DVD) or PATA channel (if using IDE) is not disabled.
If DVD is not detected in Bios, and the DVD and/or PATA/SATA channel/port are not disabled, then you need to replace the DVD drive unit.
In that case check the DVD drive data and power connection. Eventually try extracting the DVD drive and putting it back in place.
IF DVD is detected in bios, then the problem is a corrupted Windows registry.
In that case go to Start menu, open the Run dialog box, and type Regedit in the Run box.
The registry editor will open.
lick the Start button, press run and type regedit.
Before doing the procedure, save a copy of the registry. Click File, then Export using the menu at the top of the Registry Editor Window:
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