Summary
The following pop-up message keeps on appearing when upgrading WFBS 6.0 SP3 to version 8.0/9.0.

"A software upgrade is available. You may experience a brief network interruption while upgrading.
Upgrade will begin automatically in: <time>"
Upgrade will begin automatically in: <time>"
Details
"A software upgrade is available. You may experience a brief network interruption while upgrading.
Upgrade will begin automatically in: <time>"
Upgrade will begin automatically in: <time>"
You encounter this behavior in any of the following scenarios:
- You are running the upgrade from the WFBS 6.0 SP3 client.
- You moved the client to a WFBS 8.0/9.0 server using IpXfer.exe.
Note: You can use other ways to upgrade the client.
- You delayed the upgrade for 24 hours.
- You clicked Remind Me later and restarted the system.
- The pop-up notification restarted the countdown after the restart.
- You clicked Upgrade Now, but the notification popped up again after 18 minutes based on the tmupgrade log. Below is a snapshot of the log:
10/15 14:52:42 0a9c-04f8 (5) user selects to upgrade! - TmUpgradeUILog(115)
----------
10/15 15:10:16 0db8-0db0 (5) CUpgradeUICreater::StartUIProcess(), CreateProcessAsUser result= 1 - CUpgradeUICreater.cpp(317)
10/15 15:10:16 0db8-0db0 (5) After Close Process-Thread Handle - CUpgradeUICreater.cpp(331)
10/15 15:10:16 0db8-0db0 (5) StartProcess success - upg_DelayUpgrade.cpp(152)
10/15 15:10:17 0d8c-0cf0 (4) [TmUpgradeUI.exe]: running on [windows NT 6.0], compiled on [Oct 12 2012 02:33:59]. - SolarDebug.cpp(90)
10/15 15:10:17 0d8c-0cf0 (5) CTmUpgradeUI Dialog create - TmUpgradeUIDlg.cpp(30)
10/15 15:10:17 0d8c-0cf0 (5) CTmUpgradeUI Dialog Oninit - TmUpgradeUILog(59)
10/15 15:10:17 0d8c-0cf0 (5) CTmUpgradeUI Dialog Oninit,nCxFullScreen:1704, nCyFullScreen:998 - TmUpgradeUILog(71)
10/15 15:10:17 0d8c-0cf0 (5) CTmUpgradeUI Dialog UpdateTimeToShow - TmUpgradeUILog(166)
10/15 15:10:17 0d8c-0cf0 (5) CTmUpgradeUI Dialog time to show:(00:05:00) - TmUpgradeUILog(172)
The issue happens because there is not enough disk space for the upgrade.
The only way to stop this notification is to upgrade/install again the SA.