Internet Explorer Setup May Not Update System.1st FileLast reviewed: November 26, 1997Article ID: Q174591 |
The information in this article applies to:
SYMPTOMSWhen you install Internet Explorer, the System.1st file in the root folder of the boot drive may not be updated.
CAUSEThis behavior can occur in either of the following situations:
RESOLUTIONTo resolve this issue, copy the System.dat file to the System.1st file. To do so, follow these steps:
MORE INFORMATIONThe System.1st file is not used in normal Windows usage. It is intended for use by support professionals as a known good registry file. There is no problem running Internet Explorer with an outdated System.1st file or no System.1st file. To verify that the System.1st file was updated with Internet Explorer settings before using it to replace the registry, check the "Integrated Browser.ini" file. If the System.1st file was updated, it is listed in this file (usually the second entry). If the Windows Desktop Update component is installed, the registry is backed up. The old desktop files are backed up to the "Integrated Browser.dat" file and the corresponding "Integrated Browser.ini" file is created. Additionally, the original System.1st file is also backed up and stored in the "Integrated Browser.dat" file. A command that copies the System.dat file to the System.1st file is added to the RunOnce key in the registry. The System.dat file is copied to the System.1st file the next time the computer is restarted or the RunOnce key is processed. The validity of the System.1st file is not checked.
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Additional query words: 4.00
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