Agilent Technologies E4991A Service Manual page 170

Troubleshooting
Booting Process Troubleshooting (for serial prefix MY433 and later)
Figure 4-16 Windows boot screens
If you encounter the following problems, try to reinstall the operating system before
replacing the A27.
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NOTE If the E4991A was turned off without shutdown process, Microsoft Scandisk runs while the
windows boot screens are displayed. If a serious problem is found in the scandisk, reinstall
the operating system. For details of the operating system installation, refer to Appendix B,
"System Installation for A27 Mass Storage," on page 313. If the operating system still
doesn't boot up properly after reinstallation, replace the A27.
NOTE
The operating system automatically checks the device drivers, which are necessary to use
the E4991A functions and are installed in the system before the E4991A is shipped from
Agilent factory. If the operating system doesn't detect them, a message box is displayed. In
this case, install the device driver.
Step 3. Measurement view
The measurement view as shown in Figure 4-17 is displayed after the system initialization
is completed without problem.
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"xxx file is missing" is displayed on DOS screen.
The Window boot screen is not displayed after the splash screen is displayed.
Windows always boots up with Safe Mode.
Chapter 4