Below I copy and pasted what I have responded with on this thread: http://www.avsim.com...ausing-freezes/
Anyone with similar issues as I do, check out the link and follow the topic for a chance of a solution. Thanks.
"Hello all, after frustration and lots of testing, I have come to the conclusion that I am 99% sure it is FSUIPC causing the issue.
Yes, my FSX.cfg is tweaked but I tried building a new one already and nothing worked.
I have tried updating my drivers for my ATI, Intel HD 4000 and Realtek Sound Package. At first, that seemed to work but temporarily.
Then I checked to see if it truly is the NGX ONLY causing the issue. It turned out to be the case.
I've read many things about the config file and its tweaks but that wasn't my problem.
I went into Event Viewer to see if anything was logged and nothing was.
I tried reinstalling the NGX and after it still didn't work, I tried to repair it. That seemed to work at first but again temporarily.
Then I went into Steam to check my FSX build and it did fix around 540 files that were "corupted". I suggest doing this but for me it wasn't the winner.
I read many,many posts of other problems until I came across one thing. It was to take the DLL.xml file and EXE.xml file and place them out of the folder. I found that FSX wouldn't freeze anymore which means something wasn't working nicely with the NGX. I started by placing only the EXE.xml file back and nothing froze still. Then I placed the DLL.xml file back and FSX froze again. After, I started, one by one, to get rid of some entry's and I've found that FSUIPC, once gone, let the NGX run freeze free. The issue is, How do I fix it? Well, sorry to disappoint,but at this time I do not know and I am still researching some things about FSUIPC but I did try one thing and that was to reinstall it. It didn't work for me but I still recommend people to try it. As I test, I encourage people with similar issues to try all the things I did to see what your problem is.Thanks and hope to find the cure soon.
Ben"
dll.xml