HP ProDesk 405 G1 Microtower Maintenance And Service Manual page 123

Computer will not continue after HP logo screen displays.
Cause
System files may be damaged.
"Illegal Operation has Occurred" error message is displayed.
Cause
Software being used is not Microsoft-certified for your version
of Windows.
Configuration files are corrupt.
Solution
In Windows 7, use recovery media to scan hard drive for
errors, or use Windows Startup Repair to fix problems that
might prevent Windows from starting correctly. Windows
Startup Repair is one of the recovery tools in the System
Recovery Options menu. You can also create a system repair
disc that contains the System Recovery Options menu. If the
problem is severe enough that Startup Repair doesn't start on
its own and you can't access the System Recovery Options
menu on your computer's hard disk, you can get to the menu
and start Startup Repair by using the Windows installation
disc or a system repair disc that you created earlier.
In Windows 8, use Automatic Repair to fix problems that
might prevent Windows from starting correctly.
To access Automatic Repair:
1.
Press the Windows logo
2. Select Change PC Settings, select General, and then
under Advanced startup, click Restart now.
3. Select Troubleshoot, select Advanced options, and
then select Automatic Repair.
Windows starts Automatic Repair.
4.
Select the account to use to begin Automatic Repair, and
type the password for the account.
Windows diagnoses the computer and attempts the
repair it.
Solution
Verify that the software is certified by Microsoft for your
version of Windows (see program packaging for this
information).
If possible, save all data, close all programs, and restart the
computer.
Solving software problems
+ l to open the Settings charm.
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