Dell OptiPlex 755 User's Guide - Page 18

What Are You Looking For? • Warranty information • Terms and Conditions (U.S. only) • Safety instructions • Regulatory information • Ergonomics information • End User License Agreement • How to remove and replace parts • Specifications • How to configure system settings • How to troubleshoot and solve problems • Service Tag and Express Service Code • Microsoft Windows License Label Find It Here Dell™ Product Information Guide Dell™ OptiPlex™ User's Guide Microsoft Windows Help and Support Center 1 Click Start or → Help and Support→ Dell User and System Guides→ System Guides. 2 Click the User's Guide for your computer. Service Tag and Microsoft® Windows® License These labels are located on your computer. • Use the Service Tag to identify your computer when you use support.dell.com or contact support. • Enter the Express Service Code to direct your call when contacting support. NOTE: As an increased security measure, the newly designed Microsoft Windows license label incorporates a missing portion or "hole" to discourage removal of the label. 18 Finding Information