Troubleshooting

To restore the notebook to a previous date and time when it was functioning optimally:

1.Select Start > Help & Support > Tools > System Restore.

2.Follow the on-screen directions for restoring the notebook.

Operating System (OS) CD Repair

To repair the operating system without deleting your personal data, use the standard Microsoft OS CD that was shipped with the notebook. This CD contains the following preinstalled operating systems:

Microsoft Windows XP Home or Pro (depending on configuration)

Appropriate service pack

To repair the operating system:

1.Connect the notebook to external power and turn on the notebook.

2.Immediately insert the OS CD into the notebook.

3.Press and hold the power button for 5 seconds to turn off the notebook.

4.Press the power button again to start the notebook.

5.When prompted, press any key to boot from CD. After a few minutes, the Welcome to Setup screen is displayed.

6.Press enter to continue. A Licensing Agreement screen is displayed.

7.Press F8 to accept the agreement and continue. The Setup window opens.

8.Press R to repair the selected Windows installation. The repair process begins. This process takes 1 to 2 hours to complete. The notebook restarts in Windows after the process is complete.

6–30

Reference Guide

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HP 2542EA, 2500, 2185AF, 2158, 2505EA, 2510AP, 2508EA, 2156EA, 2117AP, 2116AP, 2114AP, 2115AP, 2113AP Operating System OS CD Repair

2550CA, 2542EA, 2562AP, 2569AP, 2555AP specifications

The HP 2135US is a versatile all-in-one desktop computer designed to meet the needs of home and small office users. This robust machine is particularly attractive for individuals who seek a blend of performance, aesthetics, and user-friendly features.

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