HP Write Manager - Administrator Guide

Adding a registry key to the registry exclusion list
IMPORTANT: Changes to items in the exclusion list are always written directly to the ash drive; so keep the
exclusion list to a minimum.
1. Open the HP Write Manager Conguration app, and select More Settings.
2. In the Registry Exclusion tab, select the Add button to add an item to the exclusion list. Repeat as
necessary.
NOTE: Items can be removed from the exclusion list using the Delete button.
3. Select OK.
4. Restart the thin client.
The following table describes the highlight colors used for the exclusion list in the HP Write Manager
Conguration app.
Table 1-5 Identifying exclusion list highlight colors for the HP Write Manager Conguration app
Color Description
None The item is excluded.
Green The item will be added to the exclusion list (requires a system restart).
Red The item will be removed from the exclusion list (requires a system restart).
Tips and limitations
Use the following tips for optimal performance of HP Write Manager.
● When HP Write Manager is enabled on an HP computer, the RAM drive is disabled. All temporary les are
stored in the c:\HPWMTemp folder. Any variables originally pointing to drive Z are redirected to c:
\HPWMTemp folder
.
NOTE: When HP Write Manager is enabled, the disabled RAM drive appears as a disabled device in
Device Manager.
● Do not add the disk C root directory (that is, C:\) to a le path in the le exclusion list.
● The following characters cannot be used in the le path for the le exclusion list:
~!@#$%^&*()_+=-`[];',./{}|:"<>?"
● If there is a space in the le path of a key to be added to a registry exclusion list, be sure to enclose the
path in straight quotes (that is, ").
● HKEY_LOCAL_MACHINE\HARDWARE cannot be added to the registry exclusion list.
● If you are adding registry keys to the registry exclusion list, HP Write Manager can translate some input
to the proper form, such as - HKLM to \REGISTRY\MACHINE. If you are using WMI, the explicit name of
the registry key must be used.
● The wildcard * is allowed in registry paths and represents any folder or no folder in the previous
directory element in the path. It can only represent a single directory element.
● If the overlay cache reaches a critical level, the system might become unstable. You can change the
critical level setting or create a prole to help limit the size of the cache by purging unnecessary les.
8 Chapter 1 HP Write Manager