Wyse 5470 laptops rebooting frequently - running out of space due to updates?

I have seen this as well, and Dell support is aware of the issue, and has a workaround that can be deployed via WMS or manually on the affected devices.   It has been corrected in a forthcoming build.  It is unclear to me why it started happening recently, if you want an explanation I would advise you to open a support case. 

Both Work around below are to be used at your own risk, and I strongly reccomend you test prior to a large scale deployment. 

#IWork4Dell

Workaround 1, Batch file ( I have not tested pushing this via WMS)

sc config MicrosoftEdgeElevationService start= disabled
sc config edgeupdate start= disabled
sc config edgeupdatem start= disabled
schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineUA /f
schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineCore /f

Workaround 2, Powershell script which can be delivered as an app policy in WMS

# Description:
# This script disables unwanted Windows services. If you do not want to disable
# certain services comment out the corresponding lines below.

$services = @(
"MicrosoftEdgeElevationService" #EdgeUpdateService
"edgeupdate"
"edgeupdatem"
)

foreach ($service in $services) {
Write-Output "Trying to disable $service"
Get-Service -Name $service | Set-Service -StartupType Disabled
}

$tasks = @(
"MicrosoftEdge*" #tasks

)

foreach ($task in $tasks) {
Write-Output "Trying to disable $tasks"
Get-ScheduledTask "$task" | Unregister-ScheduledTask -Confirm:$false

}

HI thanks for the scripts.  I have tried it out on a couple of laptops so just need to wait and see if the issue returns or not.  Watch this space!  

Hi Just as a follow up to this one of the laptops just rebooted again and when I  checked, the Windows update was running again.  Spookily enough 2 more Wyse PCs also rebooted which haven't had an issue before rebooted as well.  This sounds to me like there is still a scheduled task running to trigger Windows update to restart again despite the fact it supposed to be disabled which is really frustrating!!  Found a task for "scanforupdates" so going to delete that as well.  

The devices are not joined to AD and we add additional apps to the base image we don't make any major configuration changes unless its to try and stop the things rebooting!!  I don't think it is anything we have done as the laptops were working fine until early Feb when the reboot issues suddenly started happening. 

If not Win Update what else would be filling up the space then do you think?

I would suggest opening a support ticket to make sure there isnt something else going on.  The factory images disable Windows updates via GPO and reg changes.  Unless you have customized it, or added to AD and a GPO enabled it, I would not expect Windows update to be the culprit.

Keep us updated

Are you seeing a popup similar to below, where it is referencing Memory exhaustion?

Login as admin, what are you seeing in the Ramdisk Z:\ before you get the memory error?

This is what I have seen when Edge is the culprit.

I saw that error earlier on the laptop that rebooted but shouldn't be the issue as when I checked the MS Edge updates were still disabled and the scheduled tasks are not there.  I have left Z drive open and visible so will see if drive fills up again and reboots