1. You may be prompted to activate Windows Vista on a computer on which Windows Vista activation was not previously required
Quote:
SYMPTOMS
You may be prompted to activate Windows Vista on a computer on which Windows Vista activation was not previously required. Although this problem rarely occurs, it may occur during typical use of a Windows Vista-based computer. For example, this problem may occur under one or more of the following conditions:
• You install a device driver.
• You install a program.
• You run a new program.
• You remove a program.
CAUSE
This problem may occur because a specific system setting is removed when a program runs with administrative credentials. The removal of this system setting may cause a BIOS validation check to fail. The BIOS validation check is part of the system activation process. Therefore, you may be prompted to activate Windows Vista, even though the system did not previously require activation. For example, this problem is known to occur when you use Intuit QuickBooks 2007. However, this problem may also infrequently occur when you install other programs or device drivers.
Note This problem does not occur because of an issue in the installed program or device driver. This problem is caused by a system problem in Windows Vista.
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Resolutions to either fix the problem (if it has already occurred) or prevent it, can be found by following the link provided at the top of this posting.
The discussion thread for this issue can be found at:
Windows Vista Tamper Detection and misbehaving apps
2. Error message when you use Windows Vista: "An unauthorized change was made to your license"
Quote:
SYMPTOMS
When you use Windows Vista, you receive the following error message:
Code:
"An unauthorized change was made to your license."
To keep your system stable, you must go online and validate that your software is genuine:
- Validate Online
- Close
CAUSE
This issue may occur for many reasons. Some of the reasons include the following causes:
• A hard disk error occurred.
• A program that is incompatible with Windows Vista is installed on the computer. For example, one of the following programs is installed on the computer:
_• A computer game that uses "nProtect GameGuard" protection from INCA Internet Co., LTD.
_• TuneUp Utilities
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Resolutions to troubleshoot this issue, can be found by following the link provided above.