Does anybody know how we can log as system in Windows XP?

With administrator rights we can not delete or modify a lot of registry.

I searched on the Web and found nothing about this.

Edited June 16, 200719 yr by radix

The system account and the administrator account (Administrators group) have the same file privileges, but they have different functions. The system account is used by the operating system and by services that run under Windows. For example, defragment applications use the system account to access the hard disks.

There are many other services and processes within Windows that need the capability to log on internally (for example during a Windows installation). The system account was designed for that purpose; it is an internal account, does not show up in User Manager, cannot be added to any groups, and cannot have user rights assigned to it.

On the other hand, the system account does show up on an NTFS volume in File Manager in the Permissions portion of the Security menu. By default, the system account is granted full control to all files on an NTFS volume. Here the system account has the same functional privileges as the administrator account.

In other words, it is impossible to login with the System Account. As the word speak for itself, SYSTEM Account is used by the system and it's not intended to be used as a user account.

If you can't delete some keys in the registry when logged as an administrator, there's probably a good reason for it. But if you still wan't to delete those files, right click on the file in registry and grant the modify/full permission to admin group.

Just for the record, this can be of interest:

http://grubletrang.com/SoftwareList.aspx

http://grubletrang.com/Software.aspx?app=PowerPrompt

Licensing:

This application is freeware.

Audience:

Administrators or consultants wishing to elevate process privileges.

Description:

PowerPrompt creates a command prompt running as System. This can be a great help in various situations:

PROBLEM: Your system is infected with a virus. When you try to end the process from task manager you get "access denied" because the hacker disabled administrator access to the process.

SOLUTION: Run PowerPrompt. From the System console run task manager (TaskMgr.exe). You are now running task manager as System and you can end the process and clean your system.

PROBLEM: You have a service that uses all CPU power. When you try to restart the service you get access denied.

SOLUTION: Run PowerPrompt. From the System console run the Services MMC (Services.msc). You are now running the Services MMC as System and you can stop or restart all services, even ones protected from administrator access.

WARNING: Very often there is a good reason for the restrictions imposed upon the administrator account. USE ONLY AS A LAST RESORT IN A PRODUCTION ENVIRONMENT AND ENTIRELY AT YOUR OWN RISK!!!

Be VERY aware of the Disclaimer!

jaclaz

Thank you guys for the quick responses.