install without administrator right

your administrator to do it for you.
If it's your own machine then hopefully you have the admin password.

...like you might be doing something you're not supposed to.

Admin rights are there for a reason. If you don't have them, you probably don't need them.

You can attempt to login using the local admin account.

Username: Administrator
Password: (sometimes left blank, or admin)
Domain: ####-This computer

The ### will be your computers name
From here you can install software, granted you can get in.

TR members do not assist password recovery. Do not respond to this thread
The members of TechRepublic - A Resource for IT Professionals, will not assist anyone in the recovery of lost passwords. You may have a legitimate reason to recover a password. However, we cannot verify your motives and will therefore not assist anyone in what may be an attempt at gaining unauthorized access to a computer system. Due to the open nature of this forum, any assistance given to help circumvent security measures, even for legitimate purposes, would be available for unscrupulous individuals to use for illegitimate purposes. This is a risk that we the members of TechRepublic will not take. Please do not ask questions of this nature on TechRepublic.

If you have a legitimate need to circumvent a password scheme, please contact the vendor for the software / hardware and request their assistance. E.g. Windows XP password recovery issues should be taken up with Microsoft's technical support, Phoenix BIOS password recovery issues should be taken up with Phoenix Technologies, etc.. To those viewing this post: Please DO NOT respond any further to this thread.

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