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  2. Does your Windows 11 PC keep restarting? Let's fix that ... - AOL

    www.aol.com/news/does-windows-11-pc-keep...

    Here's what you need to do to boot your PC in safe mode with Windows 11: When your computer restarts, at the sign-in screen, press and hold the Shift key Click Power

  3. Macintosh startup - Wikipedia

    en.wikipedia.org/wiki/Macintosh_startup

    When a Macintosh boots into the classic Mac OS (Mac OS 9 or lower), the system will play its startup chime, and the screen will turn gray. The Happy Mac icon will appear, followed by the "Welcome to Mac OS" splash screen (or the small "Welcome to Macintosh" window in System 7.5 and earlier), which underwent several stylistic changes, the other ...

  4. Power-on self-test - Wikipedia

    en.wikipedia.org/wiki/Power-on_self-test

    On the screen, if working, will be the Sad Mac icon, along with two hexadecimal strings, which can be used to identify the problem. Some Macs made around this time do not use a death chime like Macs made prior to 1987, but retained the same format as those that used the death chimes, such as the presence of the Sad Mac icon and two hexadecimal ...

  5. Booting - Wikipedia

    en.wikipedia.org/wiki/Booting

    In addition to loading an operating system or stand-alone utility, the boot process can also load a storage dump program for diagnosing problems in an operating system. Boot is short for bootstrap [1] [2] or bootstrap load and derives from the phrase to pull oneself up by one's bootstraps.

  6. Bomb (icon) - Wikipedia

    en.wikipedia.org/wiki/Bomb_(icon)

    The bomb symbol is not used in Mac OS X, but a test application called Bomb.app, specifically written to cause a non-fatal crash, is included with Xcode and uses a rendition of the bomb symbol as its icon. In the original Mac OS, the system call to display a "bomb box" was called DSError, for "Deep Shit". [1]

  7. Black screen of death - Wikipedia

    en.wikipedia.org/wiki/Black_screen_of_death

    Rarely an experienced user would reinstall Windows. In the case of the former, the boot loader will most likely inform the user the name of the missing file, allowing for the user to supply and/or reinstall the missing files to resolve the boot problem. In the case of the latter, however, the computer will not be able to boot, even into safe mode.

  8. Kernel panic - Wikipedia

    en.wikipedia.org/wiki/Kernel_panic

    When a kernel panic occurs in Mac OS X 10.2 through 10.7, the computer displays a multilingual message informing the user that they need to reboot the system. [17] Prior to 10.2, a more traditional Unix-style panic message was displayed; in 10.8 and later, the computer automatically reboots and the message is only displayed as a skippable ...

  9. Troubleshooting - Wikipedia

    en.wikipedia.org/wiki/Troubleshooting

    Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.