Blue screen (BSOD) error ..............................................................................................  136
Noisy hard drive ............................................................................................................  137
Mechanical ....................................................................................................................................... 138
Fan error message - 90B ..............................................................................................  138
Noise (sound) ................................................................................................................ 139
Fan runs constantly ......................................................................................................  140
Thermal shutdown (hot) ............................................................................................... 141
Stuck power button ......................................................................................................  141
Additional information ......................................................................................................................................  142
Acronyms ......................................................................................................................................... 142
Blinking lights and boot error codes ............................................................................................... 143
Processor not executing code ......................................................................................  143
BIOS recovery code unable to nd valid BIOS recovery image ..................................... 143
Memory module error ................................................................................................... 143
Graphics Controller Error (No Controller) .....................................................................  144
Failure - System Board Error ........................................................................................  144
Intel Trusted Execution Technology (TXT) Error ..........................................................  144
Sure Start unable to nd valid BIOS Boot Block image ................................................  144
Sure Start has identied a problem (Manual Recovery Policy Set) .............................. 145
POST Error Messages and User Actions .......................................................................................... 145
Routine Maintenance for Performance Improvement .................................................................... 147
Common Blue Screen Error Messages ............................................................................................  147
Error message list ......................................................................................................... 147
Bug check symbolic names ........................................................................................... 147
Microsoft general troubleshooting of Windows bug check codes ............................... 148
Use Windows Debugging Tool ......................................................................................................... 148
Windows Software Development Kit (SDK) .................................................................. 149
Display Issue: Pixel Anomalies ........................................................................................................ 153
Cable management .........................................................................................................................  154
Connector types ..............................................................................................................................  155
8  Computer Setup (BIOS), TPM, and HP Sure Start in Windows 10 ...................................................................... 157
Using Computer Setup ....................................................................................................................................... 157
Starting Computer Setup ................................................................................................................  157
Navigating and selecting in Computer Setup .................................................................................  157
Restoring factory settings in Computer Setup ...............................................................................  158
Updating the BIOS ...........................................................................................................................  159
Determining the BIOS version ......................................................................................  159
Downloading a BIOS update .........................................................................................  159
Changing the boot order using the f9 prompt ................................................................................ 160
TPM BIOS settings (select products only) .........................................................................................................  160
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