A black screen with my mouse cursor .

[Moderator09]

I had an update yesterday , almost it took the whole night to get installed . Then today morning when i tried to turn on my laptop it was slow . Eventually ending up to the black screen after i put on my password

[WAWood · Accepted solution]

@Moderator09 

While Windows Updates can take a long time, one taking hours indicates a problem with the internal drive.

This issue is often due to a failing drive. So, let's check that first, because if it is failing, it would need to be replaced and there is no point then in doing anything else until we confirm that.

If your PC is new enough to support UEFI, you can use these steps to test the hard drive: http://support.hp.com/us-en/document/c00439024

If not, to check the drive you have to follow these steps:
1) Press Esc key repeatedly, several times a second, while rebooting the laptop. Do NOT hold the key down, just press it over and over.
2) Eventually, you will see an HP Startup Menu
3) Press the Function key for testing the hard drive (usually F2) and let it run.
If the drive checks out OK, then report that and I can provide you options for reinstalling Windows on your PC.

[Moderator09]

I did run the test for hard disk failure and turns out to be that it passed . I need serious help is there some place else where we can chat like Fb / instagram . I am stuck in this  black screen with the cursor everytime i log in ...nothing helps.

[WAWood]

@Moderator09 

No, we have no capability for chat or any other kind of interaction -- we can only do support via this forum.

The issue you described can mean that a recent Windows Update failed.

This problem is very difficult, if not impossible to fix -- from the standpoint of making repairs and leaving your stuff intact. Some steps for trying this are listed below, but they are very hard to do and if they do not work, you are faced with doing a complete Windows reinstallation to get your PC back working again.
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First thing you need to do is see if you can restart in Safe mode -- by doing these steps: https://www.tenforums.com/tutorials/2304-boot-into-safe-mode-windows-10-a.html

If you don't know how to start using Advanced Startup Options, then read this: https://www.tenforums.com/tutorials/2294-boot-advanced-startup-options-windows-10-a.html

Then, follow these steps to reset Windows Update: https://www.tenforums.com/tutorials/24742-reset-windows-update-windows-10-a.html

If these work, when you finally reboot, you should then be able to login to a working Windows desktop.