Failed to create a shadow copy of volume, Windows Server 2008 R2 SP1

hi,

when try enable "shadow copies" on each volume via shadow copy window fails error:

"failed create shadow copy of volume c:\.

error 0x80042306: shadow copy provider had error. check system , application event logs more information."

i've tried multiple solutions, including:

1) created hkey_local_machine\system\controlset001\services\volsnap\mindiffareafilesize value of 960

2) tried this http://ccolonbackslash.com/2012/05/31/server-2008-r2-vss-volsnap-error-the-shadow-copies-of-volume-c-were-aborted-because-of-a-failed-free-space-computation/

3) tried updating vssvc: https://support.microsoft.com/en-us/kb/2877115

4) checked vss providers - stable , without errors 

5) checkdisk says disks fine

6) re-registering dlls doesn't help

7) drives ntfs.

else can try? need vss work able backup stuff azure.

regards,

hi,

please check if using default ms provider. try key below:

1.click start, click run, type regedit , , click ok.
2.locate following registry subkey, , right-click it:

hkey_local_machine\system\currentcontrolset\control\backuprestore

3.point new, , click dword value.
4.type usemicrosoftprovider name new dword value, , press enter.
5.double-click usemicrosoftprovider. enable new feature, type 1 in value box. disable new feature, type 0 in value box.

then please test if same issue still exists. if so, please provide result of vssadmin list providers.

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