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 90).
2. Perform soft reset (9. Soft reset (Default Settings) on page 91).
3. Update BIOS and drivers (4. Update BIOS and drivers on page 80).
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 81)
to isolate hardware issue.
5. Undo recent changes in Windows (5. Remove or uninstall recently added
hardware, software on page 80).
6. Reseat cables and connections (10. Reseat cables and connections
on page 91).
7. Start Windows in safe mode (11. Test with minimum conguration
on page 92).
8. Use Startup Repair Windows to x Windows damaged les.
9. Test with essential hardware conguration (11. Test with minimum
conguration on page 92) 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)” at
http://support.hp.com/us-en/document/c03671001.
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 79). 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.
Common issues and possible solutions 111
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