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This is happening because the computer cannot successfully and fully load Windows. This may be hardware problem or software problem. Did you perform some change recently ,something new these days, last hours before the issue started ?
If there are no system checks/no quick tests, perform HDD and RAM check.
Let me know the test results. If the tests pass without issues, continue. If not, please, let me know
4. Repeat steps 1-2 above but when HP Startup menu opens, please choose F11 for System Recovery options.
The computer should boot from it's recovery partition to open you various recovery options. Note, that F11 option will only work if the recovery partition is there (not deleted) and intact. From there, you have prenty of options to choose from. Every HP computer comes with recovery partition present to assist in tough moments.
Please, perform "System Restore" first in an attempt to fix the issue. Please, restore back to previous days (restore point) where the issue was not present. Here is more info:
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