: Older versions of Git for Windows are known to have compatibility issues with newer curl features. Recommended Solutions
If that fails with error 43, the problem is within your curl/libcurl installation. : Older versions of Git for Windows are
Git for Windows uses a certificate bundle (e.g., ca-bundle.crt ). If this file is missing, zero bytes, or contains invalid PEM data, libcurl may receive a bad argument when trying to load the bundle. If this file is missing, zero bytes, or
git config --global http.version HTTP/1.1 If this file is missing
Then test:
git config --global http.sslBackend schannel
This error is not just a random string of text; it is a specific return code from the underlying data transfer library (cURL) that Git uses to communicate with remote servers. While the message suggests a programming error ("bad argument"), in the context of an end-user, it almost always points to a configuration issue regarding Secure Sockets Layer (SSL) certificates or proxy settings.