Black Screen Issue Question About This FIX ?

Hi everyone , i dont know if this is the right place to place this issue but here it goes .

I am currently getting this black screen issue ever since formating to Window 7 Ultimate 64 bit . I have tried all the fixes in avsim forum one of them is adding a window vista uiautomationcore.dll to my main fsx folder. That didn't work but it helps when moving to some menu items like switching views or something . The problem is every time am flying for a long period of time when it comes to existing let say for example fspassengerx like tring to save the flight i just did my screen goes black an i can still here the sound the engines in the back ground . I have try reinstalling fspassengerx but the problems keeps happening . An i notice is not with fspassenger because when i click to view the map or something after a long flight i also got the black screen isuee. I have try adding vSync FIX but that doesn't solve the issue. I was searching on google for the error number i got from even viewer. An some one said this can fix this issue but am not sure if its right please help me out here . This is the fix someone suggested

FIX

I tried completely deleting the uiautomationcore.dll file from both the syswow64 and system 32 folders. Now I am playing FSX with graphics and traffic settings set to custom and turned all the way up while I have aircraft, scenery and weather settings turned to ultra high and no crashes for two days!!!! I can click in and out of any menu such as the MAP or virtual flight path or change aircraft mid-flight or change weather mid-flight with no crashing. I have tried every which way to get FSX to crash and I just cannot get it to!

FSX really is awesome when it works.

HERE IS THE FIX: You may have to take ownership of the files if windows stops you from deleting the file. Open CMD prompt and right click to run as administrator and then type in exactly as below substituting your windows login username where it says username:

takeown /f C:\Windows\System32\uiautomationcore.dll

cacls C:\Windows\System32\uiautomationcore.dll /G username:F

takeown /f C:\Windows\Syswow64\uiautomationcore.dll

cacls C:\Windows\Syswow64\uiautomationcore.dll /G username:F

Now you can just navigate to your syswow64 and system32 folders in windows explorer and after backing up the UIautomationcore.dll files just delete them from your computer. (Remember to delete the Uiatomationcore.dll file in ure FSX folder also if you installed it as the fix in other posts.)

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I don't think this is right , or i don't even know if will damage my system so i haven't try it. I just want someone to confirm that his is safe an that it actually works . Here is the error message i got when when my screen went black .

Faulting application name: fsx.exe, version: 10.0.61472.0, time stamp: 0x475e17d3

Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000

Exception code: 0xc000041d

Fault offset: 0x732c4f0d

Faulting process id: 0x12c4

Faulting application start time: 0x01cd7af345afce7c

Faulting application path: C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\fsx.exe

Faulting module path: unknown

Report Id: ef9ce4a8-e706-11e1-9de4-8c89a564bab2

Can someone help me solve this issue i am kind of new to window 7 64bit?