Can't run minGW compiled exe files on windows after Qt 5.8.0 installation.

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-...":

Attachment 12345

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!

Did you try deleting the Qt and MinGW folders, and try a clean installation.

Also do mention the windows version.

BTW you can use multiple versions Qt and MinGW, you don't need un-install the previous version, you could always revert back to them in case of such setup failure. :)

The installation issue was solved to me by updating this:
Update for Universal C Runtime in Windows