Pro-book 4520 won't boot. I switched on this morning. The windows (7) logo appeared, then blue/black screen and cursor only. Would not boot up. Ran diagnostics which said all OK. Still won'

Question move from 'Black Computers' to Windows 7.

When Windows gets to a black screen with a cursor and gets stuck there, it is likely that there are corrupted system files in your computer. One of the best ways to fix this is using System File Checker (SFC). This tool will look for corrupted system files and repair them accordingly.Oct 26, 2022

How to fix Windows 7 Black Screen with cursor? - Auslogics

Videos on it as well

https://www.google.com/search?q=Windows+7+computer%2C+will+not+boot+up.+black+screen+with+a+cursor

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First, remove ALL media, DVD,CD,USB etc. unplug, remove battery, plug in, try to reboot normally. If that fails, Try a System Restore/Recovery using this procedure, try a Restore first, a Full Recovery will cause you to lose data. http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=115&prodSeriesId=242213&prodTypeId=321957&objectID=c00006110

if you can get hold of a windows disc try booting from that and using the repair option.

perhaps you need to reinstall the operating system,the system files might be corrupted because of power problem,and there's "windows loading files" thing,so the windows cannot go further because it cannot find some files while loading. do you need any help with installing operating system?

Dear user,

Looks like the OS has got corrupted, your system needs a format. before that try pressing F2 to go the window where you get can option to boot from safe mode.

Run the Check Disk Utility.

To run the check disk utility you will need a repair disc ora operating system disc. Put the disc in the cd drive and boot fromit. You want to get to the Dos Command Prompt (Black screen with whiteletters) and type the following command: chkdsk /r
Check disk will run well over an hour or two and you will notice thepercentages going from high to low, this is normal. Let it run tocompletion. Then reboot machine.

If check disk fails to solve your problem you might have to reinstall windows.Try doing a Repair Install that way you don't loose your data, documents,music, pictures, videos or programs.

In windows xp you get to the dos command prompt by selecting R for repair whenthe options appear.

In Vista and Windows 7 you want to get to the recoveryconsole and look down at the bottom of the window for the Dos Command.

Yes, this sounds like the traditional black screen issue, but it's different! This machine is a Dell Dimension 3000 with XP. System won't boot. After Blue Dell BIOS splash screen with F2 & F12 options, it just goes black. There will ultimately be a white cursor in the upper left hand corner. I can edit BIOS with F2, I can get in to the boot menu with F12, but I can't do anything after that. I can even get in to the Safe Mode menu (F8), but it never boots.

PowerSuite Golden is the right software you need in your case, it is an awesome toolkit that includes a boot CD and several other data rescue tools that help get your PC going even if Windows won't start or computer won't boot up at all. Download the ISO file----> Burn it to CD----> Boot your PC from the CD by setting the CD drive as the first boot device in the boot sequence.

The Acer Recovery CDs do not set the Boot flag on the hard drive. I had to manually set the boot flag to on using GPARTED Live. After restarting using the GPARTED CD, you can manage the flags under the partition drop down and click on the Boot flag. After exiting GPARTED, I rebooted the laptop and no more black screen....fixed!!
I hope this helps others.

You have a virus I hope you have your data backed up. Reformat your hard drive(I assume you have a boot disk)