Every time that you log on to a Windows Vista-based computer that is connected to a domain, a temporary user profile is created. When you log off the computer, the user profile is deleted. Additionally, one of the following events may be logged in the Application log:

Log Name: Application
Source: Microsoft-Windows-User Profiles Service
Date: Date
Event ID: 1511
Task Category: None
Level: Warning
Keywords: Classic
User: User
Computer: Computer
Description: Windows cannot find the local profile and is logging you on with a temporary profile. Changes you make to this profile will be lost when you log off

Log Name: Application
Source: Microsoft-Windows-User Profiles Service
Date: Date
Event ID: 1534
Task Category: None
Level: Warning
Keywords: Classic
User: User
Computer: Computer
Description: Profile notification of event Delete for component {error code} failed, error code is -2147024894.

Log Name: Application
Source: Microsoft-Windows-Search
Date: Date
Event ID: 3036
Task Category: Gatherer
Level: Warning
Keywords: Classic
User: User
Computer: Computer
Description: The content source [csc://{content source number}/] cannot be accessed. 

When you try to upgrade a computer to Windows Vista, you receive the following error message:

This computer does not have enough space for temporary files. Windows installation needs at least size megabytes (MB) of space on any partition for temporary files. To install Windows, free enough space and restart the installation.

Error code 0×80070103

You experience this problem even if you have sufficient hard disk space to install Windows Vista.

When you try to install the Microsoft Windows Vista operating system, you receive the following error message:

Windows Setup cannot locate a valid hard drive to store temporary installation files.

Setup does not continue past 0 percent when it tries to copy installation files.