Command Prompt won't Disable Administrator Account

[Twiggy]

Hello all, this is my first post in the 7forums and I'm ashamed of myself that it has to be one asking for help - mind you all, I'm tech savvy so I know what I'm talking about unless I otherwise note it, but here it goes:

In the past, I have had to use the built-in Administrator account to install Microsoft's virtualization software and install Windows XP Mode (I don't know why it wouldn't install before, I even disabled UAC with failed results). In order to do this, I enabled the Administrator account via Command Prompt, as recommended by a tech support specialist I used the command "net user administrator /active yes" and the Admin account was active, I installed the program, disabled the Administrator account, and went on my merry way.
It is now about a year later and after I have created a system image of my computer (I only made one because I do not have enough sufficient storage to make multiple ones, or even replace my current one) I have found out that there is an issue with command prompt or something... I unfortunately do not know. I had to reactivate the Administrator account for one reason or another and did my business, but after I reactivated it I came to find that the same command to activate the Administrator account... Changed its password. I used a Linux Live CD with Ophcrack to find out that the password for my Admin account was changed to "yes". And after I tried to disable the account, INSTEAD of it being disabled, the password was set to "no" hence "net user administrator /active no". I decided to experiment on the matter with other accounts, and typing in other words besides "yes" or "no" and I found that the net user command will change the password of any account. This is disturbing to me and also, I would like to easily enable or disable any account without changing any passwords.

As a temporary fix, since I have Windows 7 Ultimate, I disabled the Admin account from another method posted here on 7forums, but I do not want to use those tools, because I really want my OS to work all the way it should instead of just finding another way to do it. I cannot find any other mention to this error on the internet, so I ask the generously wise users of the 7forum to help me.

 

[Solidwave]

I'm not sure why you find it alarming that net user can change user passwords. The control panel and computer management console will let any administrator change user passwords as well. It's the way things are supposed to work.

 

[Twiggy]

I find it alarming because I can accidentally change the password to an account, forget about it, then months later when I go to use the account again, I forget about it and freak out that I forgot the password was no or yes. It has hapened before, so I have good reason. Any help is greatly appreciated. Also, I would like to know the cause for this type of problem if anyone knows it, since so much has happened between the then and now that I do not have any idea.

By the way, I am aware that the net user command is used for changing passwords as well, but I was using the command to activate or deactivate accounts when this happened.