DOCUMENT:Q104549  01-FEB-1994  [W_NT]
TITLE   :Cannot Restore Backup After Upgrading to U.S. Service Pack 2
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:buglist3.10.003 fixlist3.10.003

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The information in this article applies to:

 - Microsoft U.S. Service Pack 2 for Windows NT
   and Windows NT Advanced Server version 3.1
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SYMPTOMS
========

If you create a backup tape and restrict the access to only the owner and
administrative accounts, you cannot access (restore) the tape under U.S.
Service Pack 2 from either the owner or administrative accounts. If you
attempt to access the tape, the following error message appears:

   This tape has been secured. You do not have the proper privileges.

CAUSE
=====

Prior to U.S. Service Pack 2, the security key was compressed in ANSI. In
U.S. Service Pack 2, the compression was switched to Unicode.

WORKAROUND
==========

To work around this problem you can reinstall Windows NT or remove U.S.
Service Pack 2 by using the Emergency Repair disk. Before choosing to use
these workarounds, see the Status section below.

STATUS
======

Microsoft has confirmed this to be a problem in U.S. Service Pack 2 for
Windows NT and Windows NT Advanced Server version 3.1. This problem was
corrected in the latest U.S. Service Pack for Windows NT and Windows NT
Advanced Server version 3.1. For information on obtaining the Service Pack,
query on the following word in the Microsoft Knowledge Base (without the
spaces):

   S E R V P A C K

Additional reference words: 3.10
KBCategory:
KBSubCategory: CSDISSUE NTAP

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