Windows 10: MSI installation with Folder Redirection fails.

We have an issue with some msi-installers Firefox, Google Chat running on a system with Folder Redirection enabled. We set UNC path to Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders\AppData variable. Installation fails with error "Failed to Create AppData Cache Folder".
We found that these installers work fine with Windows Installer V 5.0.17763.404 and fail with Windows Installer. V 5.0.19041.1. We found out that new version of Windows Installer tries to set special permission on the folder ...\AppData\Roaming\Microsoft\Installer. It seems that it has troubles to access remote ...\Microsoft\Installer directory in general.


As stated here https://stackoverflow.com/questions/61387044/msi-error-failed-to-create-appdata-cache-folder the issue could be fixed in Windows 10 1809 by uninstalling April's cumulative update KB4549949 but unfortunately recent versions of Windows 10 have the problem out of the box.


We run installer with /l*vx options and receive following log with error "Failed to Create AppData Cache Folder".

:)

 

C windows installer folder - Delete?

He can do symbolic link redirection and move the files in it to a different location. *Wink
Better try it out in a virtual of first. Just a suggestion.

Like:
First move everything in c:\windows\installer to d:\installercache
Then delete c:\windows\installer folder
Then type this in command mode as admin
mklink /d c:\windows\installer d:\installercache

Removing those installer files is a bad idea. it might prevent you from updating or uninstalling apps.

 

MSI installer not running from Downloads folder

Hello,

I am a developer at Lacuna Software and we are experiencing installation issues on one of our softwares with 1,500,000+ users:

• MSI installer does NOT run from the Downloads folder with double click
• MSI installer does NOT run from CMD> msiexec /i "C:\Users\YourUserName\Downloads\WebPkiSetup_en-US.msi"

Workaround we found:

• MSI installer does run if you move it to any other folder (e.g. Documents)
• MSI installer does run from CMD on Downloads folder just by adding the log parameter: /L*V "<log file path>"

this last one is odd, looks like a quantum physics problem: trying to observe the log changes the experiment event.

The software to download: https://get.webpkiplugin.com/Downloads/v0/setup-win-en

Important Details:

1. Both app and installer are codesigned with trusted EV Code Singing certificate
2. Both app and installer are timestamped with trusted EV certificate
3. The app and installer are whitlelisted on main antivirus
4. The installer does not require admin privileges

Since this installing issues started to popup recently, the installer did not change (the
timestamp shows it was signed on 2019-10-12) and it happens with some Windows 10 only (not everyone),

we suspect that it has something to do with any recent update.

Please let me know if someone has any thoughts on this

 

Windows Installer Error: This installation package cannot be opened.

Hi AJ,

Thank you for posting in Community.

We are glad to provide the assistance required to help you answer your query.

The above error can occur if the locally cached Windows Installer package (*.msi) file is damaged or corrupted.

To rectify the above, I suggest that you try the steps mentioned below and check if you are able to install the software successfully.

• Open the \Windows\Installer folder on your computer's hard disk.
• Right-click any file with an .msi extension.
• Click Properties on the shortcut menu. The
  Subject box on the Summary tab contains the name of the product that installed the .msi file.
• Repeat steps 2 and 3 for each .msi file in the \Installer folder, and delete the .msi file for the software that you are trying to install.

Hope this helps