A: No. The legitimate file is a compiler optimization library. However, malware sometimes uses similar names. If you find the file in a suspicious folder like C:\Users\YourName\AppData\Local\Temp , run a full antivirus scan. The genuine file should reside in a bin folder inside msys64 or mingw-w64 .
To register the libisl-23.dll file, follow these steps: libisl-23.dll not found
A: Yes. If you no longer use the compiler or build tools that require this library, uninstalling them will remove the error message entirely. libisl-23.dll not found