Hello

I get the following ERROR - it flashes on my screen every 10 mins - GREG error - This OPERATING system is not supported by this application- after installing Windows 10.

There is nothing in my Control Panel | Programs uninstall of the name GREG there.

How can I remove it, please?

Thanks!This is not a new problem. It has been documented.
It also comes in Windows 8.

[urlhttp://answers.microsoft.com/en-us/windows/forum/windows_8-performance/greg-error-this-operating-system-is-not-supported/83c02045-9e27-4291-bb77-90cc7562617b?auth=1]GREG error - This operating system is not supported by this application- after installing windows 8 [/url]

The REMEDY is rather detailed and may be specific to a certain brand of computer. READ over the link and see if it APPLIES to you.
Correct link.
GREG error - This operating system is not supported by this application- after installing windows 8 Summary: apparently the problem is on Acer machines. It happens with Windows 8 as well. The problem application is Acer Global Registration. Go to Programs and Features in Control Panel and uninstall it (GREGsvc.exe and Greg.exe) Hello

Thanks for your replies.

I think I may have resolved it on my Packard Bell PC.

As I say, there is nothing about GREG in my Control Panel, but I removed the Packard Bell Registration entry there, and I haven't seen the GREG pop-up since.

Cheers

High1