After probably the installation of an outdated program messsed up some libraries, the window 'Missing Api-ms-win-core-crt-l1-1-0.dll' popped when starting particular programs.
As solution the installation of 'Microsoft Visual C++ 2015 Redistributable (vc_redist.x64.exe and vcredist_x86.exe)' is recommended. However, this installation permanently failed.
Also the installation of Visual Studio 2015 itself failed, because the necesssary KB2999226 also faild to install. Manual installation of KB2999226
Hopefully Windows 10 will fix the problem you’re having. You could always use disc imaging software like Macrium reflect to backup your 8.1 before updating to 10 then if it doesn’t fix the problem or you experience other problems you can quickly return to 8.1. Oct 27, 2015 - Here is what finally helped: Re-Installation of SP 1 for Windows 7. As a matter of fact my system already had SP 1 for Win 7 installed. Api-ms-win-core-crt-l1-1-0.dll, File description: ApiSet Stub DLL Errors related to api-ms-win-core-crt-l1-1-0.dll can arise for a few different different reasons. For instance, a faulty application, api-ms-win-core-crt-l1-1-0.dll has been deleted or misplaced, corrupted by malicious software present on your PC or a damaged Windows registry.
Api-ms-win-crt-runtime-l1-1-0.dll a DLL (Dynamic Link Library) file, developed by Microsoft, which is referred to essential system files of the Windows OS. It usually contains a set of procedures and driver functions, which may be applied by Windows. Apr 24, 2018 Those DLLs are Windows's implementation detail and are subject to change at anytime. Basically Microsoft started moving around APIs starting from Windows 8. For example, APIs in Windows 8's api-ms-win-core-file-l1-2-0.dll got moved to api-ms-win-core-file-l1-2-1.dll in Windows 8.1.
DISM.exe /Online /Add-Package /PackagePath:XXXXWindows6.1-KB2999226-x64.cab
seemed to work (package successfuly added) but did not help. Visual Studio 2015 and vc_redist.x64.exe failed to install.
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1 Answer
Here is what finally helped: Re-Installation of SP 1 for Windows 7.
As a matter of fact my system already had SP 1 for Win 7 installed. But obviously some fixes seemded to be broken. Re-Installation (Repair) of SP 1 for Win 7 helpd. After that, KB2999226 still did not install, but vc_redist.x64.exe and vcredist_x86.exe did and the 'Api-ms-win-core-crt-l1-1-0.dll' problem disappeared.
To be on the safe side try this:
wusa.exe Windows6.1-KB2999226-x64.msu /extract:XXXX DISM.exe /Online /Add-Package /PackagePath:XXXXWindows6.1-KB2999226-x64.cab
If that doesn't work just try steps 1. and 3. (leave manual installation of KB2999226 out)
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