: For mobile-specific issues, you can access the Laptop Troubleshooting and Repair Guide or the Laptop Maintenance and Repair Workbook on Scribd .

: A detailed guide covering hardware and software issues, hosted on e-bookshelf.de .

: Ideal for newcomers, this guide focuses on Windows-based repairs and is available via Pearsoncmg . Specialized & Tutorial-Based Manuals

: This visual guide on Scribd uses logical steps to help identify hardware failures.

: This series by Scott Mueller is an industry staple. You can find full-text PDFs of the 19th Edition and earlier 8th Edition through Pearson Education’s servers.

: Instructions for replacing dried-out thermal paste on CPUs.

: Reassembling and checking system temperatures.

Several comprehensive PDF guides for computer repair and maintenance are available for free download from educational and archival sources.