How to enter diagnostic boot – Dell laptops


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Hold “fn” while pressing the power button!

One thought on “How to enter diagnostic boot – Dell laptops


  1. Warning: Use of undefined constant user_level - assumed 'user_level' (this will throw an Error in a future version of PHP) in /homepages/3/d98111892/htdocs/insanelabs/htdocs/wp-content/plugins/ultimate-google-analytics/ultimate_ga.php on line 524
    Laptop Repairs Leicester says:

    Warning: Use of undefined constant user_level - assumed 'user_level' (this will throw an Error in a future version of PHP) in /homepages/3/d98111892/htdocs/insanelabs/htdocs/wp-content/plugins/ultimate-google-analytics/ultimate_ga.php on line 524

    Wot the hell? How did I not know that?

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