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What would cause a foreign image of large ghost white letters on a black screen to show up behind my start up I.d. image? Is this a hack of some sort? The letters spell “entinel”. Also safe startup is blocked.
MacBook Pro 15″, OS X 10.11
JamesJDM1 wrote:
What would cause a foreign image of large ghost white letters on a black screen to show up behind my start up I.d. image? Is this a hack of some sort? The letters spell “entinel”. Also safe startup is blocked.
"Hack"...this would be my very last guess, it makes no sense to me.
Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus,
all these are known to cause issues on the macOS.
I would simply try a safe boot to clear system caches files and see if your issue resolves:
Safe Boot https://support.apple.com/en-us/HT201262
JamesJDM1 wrote:
What would cause a foreign image of large ghost white letters on a black screen to show up behind my start up I.d. image? Is this a hack of some sort? The letters spell “entinel”. Also safe startup is blocked.
"Hack"...this would be my very last guess, it makes no sense to me.
Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus,
all these are known to cause issues on the macOS.
I would simply try a safe boot to clear system caches files and see if your issue resolves:
Safe Boot https://support.apple.com/en-us/HT201262
mac book pro screen has strange white image in background on start up.…
