How many git tools have you installed? Is your context menu overloaded like on the screenshot to the right? Git for Windows, Git Extensions, tortoisegit and other tools are creating lots of redundant command menu entries. Most of the time you won’t need multiple ways of doing a fetch or a command or even want to do all the stuff from the commandline. Take time to cleanup unnecessary stuff from your developer machine and because there will be the nice side effect of faster opening context menus.
But how, lets continue here …
Git for Windows
From a cmd.exe window, cd to "C:\Program Files (x86)\Git\git-cheetah" and run
regsvr32 /u git_shell_ext64.dll
From a cmd.exe window, cd to "C:\Program Files\Git\git-cheetah" and run
regsvr32 /u git_shell_ext.dll
Menu –> Tools –> Settings –> Shell extension
Check all the entries to move them from the top level to the Git Extensions entry.