First, ensure that you have all of the updates -- including the non-critical updates that aren't added automatically -- for Windows 7 SP1. And, naturally, uninstall Premiere Elements and reinstall it and ensure that you have the latest version of Quicktime that will install on your computer.
I'm a bit concerned that Windows 10 runs like malware on your computer though. How old is this system? The only reason Windows 10 would give you problems is if your hardware was so old that it wasn't supported by the operating system or possibly if your antivirus software was bugging up the works (Norton is notorious for this). And, whatever operating system you use, I'd recommend downloading a program like the free Driver Booster to ensure you have all of your system's latest drivers.
Version 11 should run very well on Windows 7, 8 and 10, although only 64-bit operating systems will take full advantage of the program's 64-bit programming.
Steve, thanks for your help.
However, the problem remains.
I took the laptop to two different computer places. The techs said all vestiges of Windows 10 were now gone, and all the hardware and the other software were OK.
I run Windows 7 64 bit, and have SP1 installed, I uninstalled Premiere Elements 11 and Photoshop Elements 11, installed Quicktime 7.7.9, and even downloaded Drive Booster to update all my programs. I also independently downloaded and installed the latest version of Java, FWIW.
Still am getting the same runtime error message on the freshly uploaded Premiere Elements 11.
Sorry, Zachary. It will take more troubleshooting than I can offer on this forum.
Your posts are all under the logon name ZacharyTaylor1850.
Sometimes I have situational Alzheimers on passwords, etc. I thought my name would come up.
This morning I uninstalled Kaspersky, made sure updates were installed, made sure Quicktime was working, and uninstalled and reinstallled Premiere Element 11.
Like my previous efforts, instead of showing the date it was installed on the Programs list of my laptop's control panel, kept showing 5/15/2016. (I bought the software in 2013.)
Just wondering if perhaps Adobe has made Premiere Elements 11 expirable, because I first noticed the problem in early June.
None of the Elements programs have an expiration built into them.