Compaq dc5800 - Microtower PC User Manual page 62

Short description
Intermittent encrypt and
decrypt error occurs: The
process cannot access
the file because it is
being used by another
process.
Data loss in removable
storage occurs if storage
is removed prior to new
data generation or
transfer.
During uninstall, if user
has not initialized the
Basic User and opens the
Administration tool, the
Disable option is not
available and Uninstaller
will not continue until the
Administration tool is
closed.
Intermittent system lockup
occurs after creating PSD
on 2 users accounts and
using fast-user-switching
in 128-MB system
configurations.
EFS User Authentication
(password request) times
out with access denied.
Minor truncation during
setup of Japanese is
observed in functional
description
EFS Encryption works
without entering password
in the prompt.
Secure e-mail is
supported, even if
56 Chapter 8 Troubleshooting
Details
certificate, it shows as non-trusted. While
the certificate can be installed at this
point by clicking the install button,
installing it does not make it trusted.
Extremely intermittent error during file
encryption or decryption occurs due to
the file being used by another process,
even though that file or folder is not being
processed by the operating system or
other applications.
Removing storage mediums such as a
MultiBay hard drive still shows PSD
availability and does not generate errors
while adding/modifying data to the PSD.
After system restart, the PSD does not
reflect file changes that occurred while
the removable storage was not available.
The user has the option of uninstalling
either without disabling the TPM or by
first disabling the TPM (through Admin.
tool), then uninstalling. Accessing the
Admin tool requires Basic User Key
initialization. If basic initialization has not
occurred, all options are inaccessible to
the user.
Since the user has explicitly chosen to
open the Admin tool (by clicking Yes in
the dialog box prompting Click Yes to
open Embedded Security
Administration tool), uninstall waits
until the Admin tool is closed. If user
clicks No in that dialog box, then the
Admin tool does not open at all and
uninstall proceeds.
System may lock up with a black screen
and non-responding keyboard and
mouse instead of showing welcome
(logon) screen when using fast-switching
with minimal RAM.
The EFS User Authentication password
reopens after clicking OK or returning
from standby state after timeout.
Functional descriptions during custom
setup option during installation wizard
are truncated.
By allowing prompt for User password to
time out, encryption is still capable on a
file or folder.
Embedded security software and the
wizard do not control settings of an e-
Solution
To resolve the failure:
1. Restart the system.
2. Log off.
3. Log back in.
The issue is only experienced if the user accesses the
PSD, then removes the hard drive before completing
new data generation or transfer. If the user attempts to
access the PSD when the removable hard drive is not
present, an error message is displayed stating that the
device is not ready.
The Admin tool is used for disabling the TPM chip, but
that option is not available unless the Basic User Key
has already been initialized. If it has not, then select
OK or Cancel in order to continue with the
uninstallation process.
Root Cause suspicion is a timing issue in low memory
configurations.
Integrated graphics uses UMA architecture taking 8 MB
of memory, leaving only 120 available to user. This 120
MB is shared by both users who are logged in and are
fast-user-switching when error is generated.
Workaround is to reboot system and customer is
encouraged to increase memory configuration (HP
does not ship 128-MB configurations by default with
security modules).
This is by design—to avoid issues with Microsoft EFS,
a 30-second watchdog timer was created to generate
the error message).
HP will correct this in a future release.
The ability to encrypt does not require password
authentication, since this is a feature of the Microsoft
EFS encryption. The decryption will require the user
password to be supplied.
This behavior is as designed. Configuration of TPM e-
mail settings does not prohibit editing encryption