Hello, it's the first Qt issue I send after 4 years using Qt but this time, I'm blocked, totally blocked.

Wanting to try qt-opensource-windows-x86-mingw530-5.8.0,
I downloaded it from qt.io and installer raised an "api-ms-win-crt-runtime-l1-1-0.dll missing" error.

After many unsuccessful tries, I decided to return to my old situation and I reinstalled my previous version (Qt 4.8.6 + mingw 4.8.2)
but now it's not even executing .exe files so I can't test my code.

Here you have some clues:

1: Execution from Qt Creator crashes, debug exits with "0xc0000135 error".
2: Dependency Walker shows many api missing "API-MS-WIN-CORE-...":

depwalk.png

3: I installed all previous and later versions are giving me the same problem, .exe execution raises "0xc0000135" error.
4: Execution from debug and run folder raises a "libgcc_s_sjlj.dll missing" panel, which seems strange to me, this file doesn't exist in HD.

Hope it helps,
thank you for reading!