Nitro Pro slow to respond/freezes

[Deb Campbell]

I am having trouble with my NitroPro - it is constantly freezing when loading a PDF file, and it is not a file size issue.  It can freeze when loading a single page.  I am in Nitro most of the time so it is very frustrating.  I often get an error message that tells me Nitro is not responding and asks if I want to exit and I get the dreaded hourglass all the time.  Do I need to upgrade?  Or download a new release? I am using Nitro Pro 13.2.3.26.

[Allain Umailin]

Hello @Deb Campbell,

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

Since you are still working with a build that was released last 2019, 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. Kindly note Appdata folder is hidden and to unhide it, please refer to this article https://cybertext.wordpress.com/2012/05/29/cant-see-the-appdata-folder/ 

2. Download and run our Clean Up utility to uninstall your Nitro Pro:  http://install.nitropdf.com/professional_13332645/install-cleanup/install-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: https://kb.gonitro.com/knowledgebase#/search/stamps/000004307 

3. 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 installer in that folder and you may pick-up one of the older builds instead of the newly downloaded package.

4. Download and install Nitro Pro 13.33 using below offline installers:

x32 http://install.nitropdf.com/professional_13332645/en/retail/nitro_pro13_ba_x86.msi
x64 http://install.nitropdf.com/professional_13332645/en/retail/nitro_pro13_ba_x64.msi

To know if you have 32-bit or 64-bit, please refer to this article:
https://support.microsoft.com/en-ph/help/15056/windows-32-64-bit-faq 

5. After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering your serial number.

Thank you for choosing Nitro and I hope this helps.