When your Dell laptop is stuck in a white screen
display, you should run the sfc/scannow command. Follow the following steps to
process with the method:
ØOpen the command
prompt by right clicking on the start button.
ØIn the page displayed, type in sfc/scannow and hit
enter.
ØWait for the scan to finish and restart your laptop.
If the screen is still white then you might need to
contact Dell technical support to and let the team of
expert employees handle the problem for you.
For more: Dell support phone number