Hi, I'm Hania, I'm here to help you.
I'm sorry about your issue. It could be possible that you accidentally turned off while using Keyboard. Try pressing F5 to enable it.You may check more details regarding that by following the below link.If it doesn't work then apply some other solutions which are mentioned in that article, skip those which you have already tried.
https://appuals.com/how-to-fix-cursor-disappear...
I hope this helps, let me know if you need any further assistance.
Kind Regards,
Hania.
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