How to delete saved passwords for network drives in Windows

In Run window (Windows Key + R)
Type:
control keymgr.dll
then press OK.

This will open up the Credential Manager window:

Then you can delete or edit the credentials.


Solution 2:

1. Open User Accounts by clicking the Start button, clicking Control Panel, clicking User Accounts and Family Safety (or clicking User Accounts, if you are connected to a network domain), and then clicking User Accounts.
2. In the left pane, click Manage your network passwords.
3. Click the password that you want to remove, and then click Remove.