You can have more than one administrator account per PC, so you might want to set up your spouse with an administrator account, too.

To set up a new account on a Windows Vista machine, follow these steps:

1. From the Start menu, select Control Panel.
2. When the Control Panel opens, select Add or Remove User Accounts (in the User Accounts and Family Safety section).
3. When the next window appears, click Create a New Account.
4. When prompted, enter a name for the new account; then select whether this account is for a standard user or an account administrator.
5. Click the Create Account button.