The file P17.sys is not digitally signed, which means that it has not been tested by WHQL. You may be able to get a WHQL logo'd driver from the hardware manufacturer.

Hi Mark,

I need more information about the issue.

1. When exactly do you get this error?
2. What is the make and model of the computer?
3. Did you make any changes prior to this issue?

I suggest you to try the steps provided below and check if it helps.

Restart the computer a few times and check for Windows Updates.

In the Search box on the taskbar, enter Windows Update, select Windows Update. On the Windows Update page, select Check for updates.

Also, try to re-install the display drivers.

To update your display driver, you'll need to uninstall your current display adapter, and then check for driver updates.

1. Right-click the Start button. Click on Device Manager.
2. Expand the Display adapters section, right-click the listed adapter, then select Uninstall. Select the Delete the driver      software for  this device check box, then select OK and restart your PC.
3. After your PC restarts, press the Windows logo key.
4. From Settings, select Update & security >Windows Update >Check for updates.

Please get back to us with the results to assist you further.

Thank you.