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SebastianMller-5921 asked Nandhagopal edited

UWF: cant switch to disk mode and protect volume fails

On my Win10 LTSC 2019 machine i installed UWF as described in the docs,
but i can neither
1.) switch the overlay from "RAM" mode to "DISK" mode
2.) protect the c: volume

To 1)
the settings for the next session are set correctly, but on reboot they dont get applied. After several reboots the output below stays same.

 > uwfmgr overlay get-config
 UWF (Unified Write Filter)-Konfigurationshilfsprogramm, Version 10.0.17763
 Copyright (c) Microsoft Corporation. Alle Rechte vorbehalten.
    
 Überlagerungseinstellungen für die aktuelle Sitzung
     Typ:               RAM
     Maximale Größe:       1024 MB
     Warnungsschwellenwert:  512 MB
     Kritischer Schwellenwert: 1024 MB
     Freespace-Pass-Through: AUS
     Persistent: AUS
     Zurücksetzungsmodus: Nicht zutreffend
    
 Überlagerungseinstellungen für die nächste Sitzung
     Typ:               Disk
     Maximale Größe:       4096 MB
     Warnungsschwellenwert:  512 MB
     Kritischer Schwellenwert: 1024 MB
     Freespace-Pass-Through: EIN
     Persistent: AUS
     Zurücksetzungsmodus: Nicht zutreffend

To 2):
when i try to protect C: it takes ~5 minutes and then aborts with this error:

 > uwfmgr volume protect c:
 UWF (Unified Write Filter)-Konfigurationshilfsprogramm, Version 10.0.17763
 Copyright (c) Microsoft Corporation. Alle Rechte vorbehalten.
    
 Fehler: "c:" konnte durch UWF (Unified Write Filter) nicht geschützt werden (In der Endpunktzuordnung sind keine weiteren Endpunkte verfügbar.).
 >

With the previous version (Win10 LTSB 2016) i already had the issue that on the first try a volume could not be protected via WMI, which could be solved by doing it via console.
But now even with console these errors happen.

Does anyone know a solution for this?

not-supportedwindows-10-general
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Hi,

Thank you for your posting!

Based on your descriptions, your issue is not within our Q&A scope. You are suggested to seek for assistance directly from our suppor engineer via this link:

https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2

Thank you for your understanding!

Best regards
Joan

0 Votes 0 ·

It's always the same. UWF is just made as a half-as* job and contains a lot of bugs.

0 Votes 0 ·

0 Answers