Windows 10 IoT 2019 LTSC Enterprise - Administrator Guide

Installing apps
To install an app:
1. Disable the write lter (requires a system restart).
2. Perform the installation.
NOTE: If the installation process requires a system restart, you should perform that restart before
proceeding to the next step.
3. Enable the write lter (requires a system restart).
When installing apps, it might be necessary to temporarily change some environmental variables to point to
the ash drive (C:) instead of the RAM drive (Z:). The RAM drive might be too small for the temporary les
cached during the installation of some apps.
To change the environmental variables:
1. Search for Advanced system settings.
- or -
In Control Panel, select System and then select Advanced system settings.
2. Select Environmental Variables.
3. Change the value of the TEMP and TMP variables to C:\Temp.
NOTE: Create this folder ahead of time if necessary.
IMPORTANT: Be sure to change the environmental variables back to their original values afterwards.
Conguring apps to cache on the RAM drive
You should congure apps that cache temporary les to cache on the RAM drive (Z:) to reduce the amount of
write operations to the ash drive (C:). By default, the following items are cached on the RAM drive:
● Temporary user, system, and print spooling les
● Temporary Internet les (copies of websites and media saved for faster viewing)
● Website cookies, caches, and databases (stored by websites to save preferences or improve website
performance)
● Browsing history
Installing apps 5