You could also try the following steps
1.Manually register Api-ms-win-core-rtlsupport-l1-2-0.dll Using Microsoft Register Serve
You may use the command: regsvr32 /u api-ms-win-core-rtlsupport-l1-2-0.dll.This will UN-REGISTER your file. And then you use the command: regsvr32 /i api-ms-win-core-rtlsupport-l1-2-0.dll.It will RE-REGISTER your file.
2.If you do not manually resister api-ms-win-core-rtlsupport-l1-2-0.dll successfully, you need to search for api-ms-win-core-rtlsupport-l1-2-0.dll in your pc. If you do not find the api-ms-win-core-rtlsupport-l1-2-0.dll, you may try the next method.
3. Run Windows System File Checker ("sfc /scannow")
System File Checker is a vital tool included with Windows. It allows you to scan for file corruption and restore Windows system files such as api-ms-win-core-rtlsupport-l1-2-0.dll. If System File Checker finds a problem with api-ms-win-core-rtlsupport-l1-2-0.dll or other critical system file, it will attempt to replace the problematic files from DLL Cache (%WinDir%\System32\Dllcache\). If the api-ms-win-core-rtlsupport-l1-2-0.dll file is not in the DLL Cache, or the DLL Cache is corrupted, you will be prompted to insert the Windows installation disc to recover the original files.
4. You may also use the next tool to fix the issue about api-ms-win-core-rtlsupport-l1-2-0.dll.
https://www.microsoftfixit.eu/fix-windows-8-api-ms-win-core-rtlsupport-l1-2-0-dll/
Sent from my iPhone using
Rocketry Forum
