HP ZBook Studio G3 Mobile Workstation - Maintenance and Service Guide
  Troubleshooting steps
Follow suggested steps below one at a time to verify normal boot process:
1. Disconnect all external peripherals, and perform a hard reset (8. Hard reset 
on page 76).
2. Perform soft reset (9. Soft reset (Default Settings) on page 77).
3. Update BIOS and drivers (4. Update BIOS and drivers on page 67).
a. Roll back to previous version may be necessary.
b. Go to safe mode to install drivers.
4. Run Hardware Diagnostics (6. HP Hardware Diagnostics and Tools on page 68) 
to isolate hardware issue.
5. Undo recent changes in Windows (5. Remove or uninstall recently added 
hardware, software on page 67).
6. Reseat cables and connections (10. Reseat cables and connections 
on page 77).
7. Start Windows in safe mode (11. Test with minimum conguration 
on page 78).
8. Use Startup Repair Windows to x Windows damaged les.
9. Test with essential hardware conguration (11. Test with minimum 
conguration on page 78) along with a veried working operating system (i.e., 
USB Windows-To-Go ) if available to isolate the software issue.
Tips and tricks For more information, see HP PCs - Using Task Manager (Windows 10, 8).
Electromagnetic Interference (EMI)
Symptoms
System locks up, freezes in certain 
physical area or location
Possible causes
Electromagnetic interference (EMI).
Troubleshooting steps
1. See (2. Examine the environment on page 66). Pay attention to external power source, 
high-frequency signals such as cell phones, microwave ovens.
2. Move the computer to dierent locations nearby to determine where it fails and where it 
does not fail.
3. Test with a veried working computer in original factory conguration.
4. Consult with support.
96 Chapter 7 Troubleshooting guide










