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HP Notebook - 15-da0596sa

once i turn it on the laptop goes into automatic repair(blue screen). then it says that this has not been successful and gives me the option to either shut down or use advanced options. i have used nearly every advanced option available such as the hp recovery manager and i am unable to perfrom a back up as it will not work therefore i cannot do the hp system recovery. i have tried the system restore, reset the pc, go back to previous version of windows, start up repair, command prompt and system image recovery. they all have not worked and i have only had the laptop for a week!! it has very important university work on it which needs to be handed in next week can anyone help me get it off the computer and then sort out whatever is happening. i am so confused its been working fine until last night. it was operating on windows 10 but not sure what specific one but i belive it is the latest update of it. The error code is 0xC000021A

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HP Recommended

Immediately after powering on start tapping the Esc key. This will open a menu where F2 System Diagnostics is an option. Tap F2 key and run the tests.

If you pass all F2 tests something here may help:

https://youtu.be/9kDVpmVRpy4

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