My computer was very slow, so I called my friend, he is computer geek and he scanned my computer with some super antivirus and anti-malware software. He found a lot of threats and viruses and removed all of them. After that I started having problems. For example, when I tried to launch Skyrim a system error stating that d3dx9_43.dll is missing from your computer appeared. And it happens in almost any game that I try to run. I didn’t have that error before cleaning my computer from threats. I tried to update my graphic card driver’s, but that didn’t solve the problem. So, I started to search on the Internet for the solution and few hours later I found how to fix the program can’t start because d3dx9_43.dll is missing from your computer error in Skyrim.
I found that d3dx9_43.dll is usually happening after virus attacks, since it is a very popular system library it is always targeted by malware and they replace it with malicious dll files. Probably that’s what happened in my situation and after removal it just disappeared. So, to fix d3dx9_43.dll is missing from your computer error when launching Skyrim, you just need to download d3dx9_43.dll library from here: http://fix4dll.com/d3dx9_43_dll. After the installation you just simply reboot your computer and d3dx9_43.dll is missing error should be fixed. At least it worked for me.
If it worked for you too, please share this guide to help the others to fix d3dx9_43.dll is missing error in Skyrim.