[Libreoffice-bugs] [Bug 139197] Impossible to run LibreOffice. DLL api-ms-win-crt-runtime-l1-1-0.dll is missing.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=139197

--- Comment #2 from Mike Kaganski <mikekaganski at hotmail.com> ---
(In reply to usreop from comment #0)
> api-ms-win-crt-runtime-l1-1-0.dll has then been downloaded, and copied in
> directories windows/system32 and windows/sysWOW64 (as I have been told on
> the webpage from wich the dll was downloaded).

Doing such things is a sure way to get malware on your system.
The problematic missing file is a part of UCRT, and may be installed using MS
Visual Studio redistributable [1]. It is a system component, and installing a
random file from Internet to your system directory is risky.

The UCRT *should* be installed by LibreOffice installer normally. In case of
some problems during the installation, installer should produce a warning that
KB2999226 component could not be installed, and user must install it manually
[2][3] (you have not mentioned if you saw any warnings during installation;
likely you haven't, which is strange, taking into account the result).

> Nothing changed. Same message appears again & again...

Are you positive that this is the *same* message? UCRT consists of multiple
similarly-named files, and you might now be asked, say, for
"api-ms-win-crt-process-l1-1-0.dll" or "api-ms-win-core-synch-l1-2-0.dll"
instead of "api-ms-win-crt-runtime-l1-1-0.dll"?

[1] See resp. platform download under "Visual Studio 2015, 2017 and 2019" at
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads
[2] https://wiki.documentfoundation.org/Faq/General/api-ms-win-*.dll_is_missing
[3]
https://wiki.documentfoundation.org/Faq/General/General_Installation_Issues_(Windows)#Enable_Windows_Update

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