[Closed] Updater fails without giving errors

Please try a live installer specifically like Google Chrome Portable. Not just regular apps.

Cool, that solves it for now on this PC.

I'd suggest figuring out the TEMP issue as you wouldn't want it to bite you with any other apps you happen to run outside the PA.c Platform (all apps run from the platform will share the custom TEMP we did before). Open Windows Explorer, right click on your PC's name in the left, select Properties, click Advanced system settings on the left in the new window, click the Advanced tab in the System Properties window, click the Environment Variables button at the bottom. In the top list, TEMP and TMP should be pointing to C:\Users\YOURUSER\AppData\Local\Temp. In the bottom list, TEMP and TMP should be pointing to C:\WINDOWS\TEMP. Unless you customized them, of course.

Back to Windows Explorer, right click on the directory from the top list (your user's TEMP) and select Properties then select the Security tab. Under group or user names, you should see SYSTEM, yourself, and Administrators listed, all with Full control specified below. If not, make the necessary changes. Now head over to the system's TEMP directory and right-click, properties, Security. You'll need to click Advanced and then continue by default usually. You should see Administrators, SYSTEM and CREATOR OWNER set to Full Control and then Users set to Special. You should be able to fix the first 3 if they are different. The last one, I'm not sure how to set it to special if it's not, so you may have to Google a bit.