In my case it is called: AMD SATA Controller The name of your SATA/IDE controller will be listed there. Open up the Windows 7 device manager (enter device manager into the search field) and uncollapse IDE ATA/ATAPI Controllers. How to find the name of your SATA/Ide Controller? StepDelete the registry keys MasterIdDataChecksum” and “SlaveIdDataChecksum in the right pane. Step Look into each subfolder and check the value of the key DriverDesc until you find the name of your SATA/IDE Controller (more info below)ĥ.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ģ. StepOpen the registry (enter regedit.exe into search field) Step Right-click on your DVD drive and click on uninstallġ. StepEnter Device Manager into search field on Start menu.ģ. So, I highly recommend to just go into the Windows 7 device manager and uninstall the DVD drive:ġ. The easiest solution is to re-install the DVD drive, because this will wipe out the PIO mode registry keys and will assign DMA mode again. Windows is trying to use PIO mode as a last resort. DMA errors are often causing this switch, this can happen when a DVD has many scratches and the drive can’t read it. Let’s make it fly again! If Windows 7 does not even recognize your drive, get help here.Ī DVD drive can become terribly slow when Windows 7 is switching the drive to PIO mode (an old, slow mode) and you DVD drive will then have a much slower transfer rate. One of our readers has problems with a slow DVD drive in Windows 7.
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