Stubborn Windows 7 script error at startup

Question

When booting up, I receive a pop up box with "An error has occurred in the script on this page"

"Error: Invalid root in registry key "HKCU\software\gaoazuzaga\qzxcsl"

This pop-up error does not occur when booting up in safe mode.

I disables all startup programs using msconfig.exe, but the error still appears.

I cannot find any registry key that matches.

Any ideas?

Answer 1

To illustrate your problem, please use snippingtool.exe to create a snapshot of this error message. Save the snapshot to your desktop, then attach it to your reply.

Answer 2

I printed out a screenshot (my mom's computer):

I did not get a screenshot of the subsequent pop-up, which referenced some java script.

I believe it is some hangover from some old computer game (Zaga Games).  I'm wondering if I could just delete the script somehow.  

Thanks for your help!

Answer 3

The AdwCleaner ran well, but did not address the problem:

Answer 4

I will try it tomorrow with I visit her.  I had downloaded a scanner and ran it, but ran into a paywall before it would clean and it didn't seem worth $47.  In the link you provided, someone recommended https://www.bleepingcomputer.com/download/adwcleaner/dl/125/ which I ran on my own PC without any issues and no paywall.  It was quick and seemed thorough.  I will report back.  Thanks again, Frederik

Answer 5

I did a Google search for you, using the error message you see, and found quite a few links, e.g. this one:

https://www.tenforums.com/general-support/71611-script-error-start-up-invalid-root-registry-key.html