Nitro Pro 11 won't open

[Jaro]

We have a problem with opening Nitro 11 on Win10 x64 PC.

So far was working fine. Now after opening it, Nitro's icon visible on task-bar but no access to Nitro window.

Tried to repair and uninstall it but following errors returned every time.

After PC reboot same message when run repair or uninstall.

Please advise.

[Allain Umailin]

Hello @Jaro,

Thank you for reaching out to us through our Community Forums!

Let us try some troubleshooting by referring to these steps:
1. Clear the content of the directory under C:\users\your_username\Appdata\local\temp. For whatever reason, not all temp files automatically remove themselves and is NOT usually caused by Nitro Pro files.

2. Download and run our Clean Up utility to uninstall your Nitro Pro: http://install.nitropdf.com/support/downloads/cleanup.zip

NOTE: This clean-up tool will erase any existing signature files within Nitro so please save them to another location before using the clean-up tool in order to keep them. Please see this link for backing up custom stamps/signatures: http://kb.gonitro.com/knowledgebase#/search/stamps/000001686

3. Extract the utility to the desktop (it doesn't always run from the zip)
4. Run the utility then reboot your machine.
5. Please clear all your downloads folder or delete all downloaded Nitro installers. This step is important because we noticed that if you are saving all the installers and you download them in the same folder (like the downloads folder), the EXE can pick up any MSI installed in that folder and you may pick-up one of the older builds instead of the newly downloaded package.

6. Download and install Nitro Pro 11.0.8.470 using below offline installers:

x64 http://install.nitropdf.com/professional_1108470/en/burn/nitro_pro11_ba_x64.msi
x32 http://install.nitropdf.com/professional_1108470/en/burn/nitro_pro11_ba_x86.msi

If you are not sure which to pick, this will help: http://kb.gonitro.com/knowledgebase#/search/64/000001874

7. After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activation and entering your serial number.
 
Thanks for choosing Nitro Pro and I hope this helps!

[Jaro]

Thanks for your help, that resolved the problem.