Windows 7 User accounts - changing, deleting and other concerns

i wasn't too sure what title to put for the thread since my issues vary. Hopefully I can explain it well.

I have two computers. Each computer uses Windows 7 professional. I have questions about UAC for each one.

COMPUTER 1

It has two user accounts.One is administrator and one is standard. I want to change the administrator account to a standard account.

In the control panel I go to Add or remove user accounts - choose the administrator account - change account type ---- here is the problem. The Stand User is grayed out. I can't select it. So I'm stuck. Is there a work around or solution?

COMPUTER 2.

I have 2 standard User Accounts (no admin account). Standard user 1 is my main account and I have all my files, programs, etc installed on this account.. Standard user 2 account has only a few files.

Here is my questions:

1. If I delete Standard User 1, will I lose all my files and programs installed under Standard user 1 or will they automatically fall under Standard user 2 when I delete Standard user 1.

2. My goal is to remove Standard User 1 but I don't want to lose the files installed under standard user 1 so if deleting standard user 1 removes the files and folders I have under it, it there a way to transfer everything under standard user 1 to standard user 2 before deleting standard user 1.

I'm far from an expert on windows. I spent a good bit of time searching google to try to find my answer but either I did not understand or it was so vague that it did not help. The last thing I want to do is lose my files so I'm being extra cautious.

Any help would be appreciated.

Thanks

If you change admin to standard your stuck and won't be able to do any admin tasks. You can copy files from an account before you delete it but depending n your setup you may not be able to run some software. I don't see the point of what your trying to do why not just disable an account?

Thanks for getting back to me. Since my post above, I abandon trying to fix my problem via windows user account. I appreciate you getting back to me. Thanks