Question: How do I change default startup directory for command prompt in Windows 7?

I usually do the following to start command prompt from C:\

```

  WIN-R (Run Prompt)
  cmd /K cd C:\

```

I want to do the following to start command prompt from C:\

```

  WIN-R (Run Prompt)
  cmd

```

Answer: 
My default dir was system32 when starting CMD. 
I then created a batch file in that directory to change dir to the one I was after.

This caused me to always call that bat when starting CMD every time.
So I made a reg file & put this inside:

```
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Command Processor]
"Autorun"="cd C:\\Users\\Me\\SomeFolder"

```

After saving it, I opened the file, clicked ok to merge with registry, and since then every time I open CMD, I get my dir
Keep the opening of the command prompt clean. Avoid editing the registry key and adding an Autorun, it may come back to bite you.  

Create a simple batch file and save it in the C:\Windows or C:\Windows\System32 folder. I call mine !.bat (exclamation mark). It has the following commands:

@echo off
c:
cd \
cls
whoami

It goes to the folder where I need to work, clears the screen and tells me what security context I'm in.