Introduction
If you work with multiple GitHub accounts—whether for personal projects, client work, or different organizations—you may encounter situations where Git continues authenticating with the wrong account. This often results in authentication errors even though you have the necessary permissions to access the repository.
I recently faced this issue while cloning a private repository from another GitHub organization. Despite having the correct access and verifying my Git configuration, every clone attempt failed because Windows was automatically reusing previously cached GitHub credentials.
After investigating the problem, I found that the issue wasn't related to Git itself. Instead, it was caused by cached credentials stored in Windows Credential Manager.
In this article, you'll learn why this happens, how Git authentication works on Windows, and the exact steps to resolve the issue.
The Problem
While attempting to clone a private GitHub repository, I used the following command:
git clone https://github.com/algointellia2026/demo-repo.git
Instead of prompting me to authenticate, Git automatically used credentials that were already stored on my Windows machine.
As a result, I encountered one of the following errors:
Repository not found
remote: Repository not found.
fatal: Authentication failed
Permission denied
Even after confirming that my Git configuration was correct:
git config --global user.name
git config --global user.email
the repository still could not be cloned.
At first, this appeared to be a Git configuration issue, but the actual cause was cached authentication credentials.
Why Git Configuration Isn't the Problem
A common misconception is that the following Git configuration determines which GitHub account is used during authentication:
git config --global user.name "Your Name"
git config --global user.email "[email protected]"
These settings only define the identity associated with your commits, including:
Commit author name
Commit author email
They do not control authentication when cloning, pushing, or pulling repositories.
Repository authentication is handled separately through authentication mechanisms such as:
Windows Credential Manager
Git Credential Manager (GCM)
GitHub CLI (
gh)Personal Access Tokens (PATs)
SSH keys
Why This Happens
On Windows, Git commonly relies on Windows Credential Manager or Git Credential Manager (GCM) to securely store authentication credentials.
When Git connects to GitHub, it first checks whether valid credentials already exist in the credential store. If cached credentials are found, Git automatically reuses them without prompting you to sign in again.
While this behavior improves convenience, it can create problems when:
Working with multiple GitHub accounts
Switching between personal and organizational repositories
Accessing repositories owned by different organizations
Previously cached credentials no longer have the required permissions
Since Git silently uses the stored credentials, authentication fails before you're given the opportunity to sign in with the correct account.
Solution: Remove Cached GitHub Credentials
The fix is surprisingly simple.
Delete the old GitHub credentials stored in Windows so Git is forced to authenticate again.
Step 1: Open Windows Credential Manager
Press:
Win + R
Type:
control.exe /name Microsoft.CredentialManager
Then press Enter.
Step 2: Open Windows Credentials
Select:
Windows Credentials
Look for GitHub-related entries such as:
github.com
or
git:https://github.com
Delete every GitHub credential that is no longer needed.
Note: Removing these credentials only clears cached authentication. It does not delete any repositories or change your Git configuration.
Step 3: Clone the Repository Again
Run the clone command again:
git clone https://github.com/algointellia2026/demo-repo.git
Since Git no longer has cached credentials, it will prompt you to authenticate again.
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