Windows Embedded 8 Standard for HP Thin Clients - Administrator Guide
Configuring UWF to allow permanent changes
CAUTION: Ensure that the write filter is enabled after committing necessary configurations to the
thin client flash drive. During normal operation of the thin client, the write filter must be enabled. Also
ensure that Page File is not enabled on thin clients with flash memory storage. Failure to follow these
required actions can void the warranty of the flash storage device. In the event of damage to the flash
storage device due to operation with a disabled write filter or enabled Page File, the damage will not
be covered by HP warranty.
The following table describes the different methods for configuring UWF to allow you to make
permanent changes to the system.
CAUTION: HP strongly recommends using method 1. Using methods 2 or 3 can result in unwanted
changes being committed to system and increased wear on the flash drive.
Method 1 Method 2 Method 3
1. Disable UWF.
2. Restart the thin client.
3. Make the necessary
configurations.
4. Enable UWF.
5. Restart the thin client.
1. Make the necessary
configurations.
2. Commit individual cached files or
registry keys. The action takes
effect immediately.
▲
Use the HP Write Filter
Configuration utility or the
command line to add files, folders,
or registry keys to an exclusion
list, and then restart the thin client.
See the following sections for more information about performing these various tasks:
●
Disabling and enabling UWF on page 7
●
Committing cached write data on page 8
●
Adding files, folders, and registry keys to an exclusion list on page 8
Disabling and enabling UWF
The following table describes the different methods for disabling and enabling UWF.
Method 1 Method 2 Method 3
1. Right-click the UWF status icon in
the notification area and select the
desired state.
2. Restart the thin client.
1. Open the HP Write Filter
Configuration utility.
2. On the General tab, select to
disable or enable UWF.
3. Restart the thin client.
1. Use the command line to set the
desired state.
2. Restart the thin client.
TIP: Method 1 is the quickest way to disable or enable UWF.
Configuring UWF to allow permanent changes 7