Help! I can't even finish this question before my screen starts doing strange things. Like jump to a new page, change font size, a second cursor 'bubbles' in a column, etc.
Windows 10 on a HP All-in-One PC.
The first thing you need to do is remove your email address from the post.
Then run an anti-malware program and an anti-virus program.
Then make sure that your web browser and windows 10 are fully updated.
HP uses it's own updating and system maintenance program, run it and check with HP if you are still having any problems.