Subject says it all. I’ve had several versions of Gigapixel on this computer - uninstalled them all - uninstalled and reinstalled v8 - still no luck.
Bought it yesterday - hey Topaz - clock is ticking (now down to 364 days of use) - I bought something that doesn’t work.
Same. I have not been able to get any of the v8’s to work, now on 8.0.3. It installs, but never opens - the process disappears after a second from the Task Manager. Calling from Lightroom has the same result. Topaz Photo AI works fine, though.
Windows 11, 23H2
Intel i7-13700K 3.40 GHz
64.0 GB RAM
Lesley - tech support sent me these instructions a few days ago, and it worked for me (“if this does not resolve the issue…”)
Hello William,
Josh here, from the Gigapixel team 
This known issue affects Gigapixel users who upgraded to v8 from an earlier build.
The following steps should resolve this issue for you.
Right-click on the “Topaz Gigapixel AI” shortcut on your desktop.
Select “Open file location”
Right-click “Topaz Gigapixel AI.exe”
Select “Run as administrator”
Click “Yes” when asked, “Do you want to allow this app to make changes to your device?”
Here is a video demonstrating these steps!
After completing these steps once, you should be able to run Gigapixel from your desktop shortcut by double-clicking, as you typically would.
If this does not resolve the issue, you can try a fresh install of Gigapixel using the steps below.
A.
In the search bar type “run” and hit enter.
In the text field next to “Open:”, paste "C:\Program Files\Topaz Labs LLC" and hit enter.
In the folder that opens, right-click the folder “Topaz Gigapixel AI” and select Delete.
B.
In the search bar type “run” and hit enter.
In the text field next to “Open;”, paste "C:\ProgramData\Topaz Labs LLC" and hit enter.
In the folder that opens, right-click the folder “Topaz Gigapixel AI” and select Delete.
Delete the Gigapixel registry entries.
Read: How to Delete Gigapixel Registry Items
Watch: How to Delete Gigapixel Registry Items
Restart your machine and download a fresh installer for Gigapixel from the “My Products" page.
Once downloaded, open Gigapixel as a standalone and ensure it functions correctly.
If you are still stuck, please reply back with your full system profile.
How To Obtain Your System Profile (Windows)
I will be on the lookout for your response and will work to continue to assist you.
All the best,
–
Joshua H.
Support Specialist
Topaz Labs
Thanks William. Unfortunately, these didn’t work for me. We’re now on version 8.1.0, and still nothing on the PC. I appreciate your forwarding those suggestions, though!
