Given A Bad Argument — Git For Windows Curl -43- A Libcurl Function Was

libcurl/8.4.0 OpenSSL/3.1.4 If you see Schannel , you’re using Windows native SSL. If OpenSSL , Git expects OpenSSL certificates. git config --global --unset http.sslBackend git config --global --unset http.sslVerify Then test:

Here’s a structured blog post draft tailored for developers encountering the curl: (43) A libcurl function was given a bad argument error on Git for Windows. If you’ve recently updated Git for Windows or switched to a new terminal environment, you might have run into this frustrating error:

curl: (43) A libcurl function was given a bad argument It usually appears when trying to clone a repository, fetch from a remote, or run any git command that uses HTTP/HTTPS transport — including git clone , git fetch , git pull , or even curl commands manually. libcurl/8

Here’s what’s happening and how to fix it. In libcurl (the library Git uses for HTTP requests), error CURLE_BAD_FUNCTION_ARGUMENT (43) means that a function received a parameter that is invalid or out of range for the operation.

curl 8.4.0 (Windows) libcurl/8.4.0 Schannel or If you’ve recently updated Git for Windows or

curl --ssl-reqd https://google.com If that also fails with error 43, your libcurl installation is broken. Reinstalling Git for Windows fixes it. If you urgently need to clone a repo:

git clone git@github.com:user/repo.git (Assuming you’ve set up SSH keys — that bypasses libcurl entirely.) The curl: (43) error on Git for Windows is almost always a libcurl/SSL backend mismatch or a bad global config value . Resetting http.sslBackend or reinstalling with Schannel solves it 99% of the time. curl 8

Got another weird Git + curl error? Drop it in the comments — I’ve probably debugged it.