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Tuesday, October 28, 2014

Windows 8.1 Windows explorer does not refresh

There was a long standing issue when my Windows 8.1 Pro did not refresh explorer, as example if I create New Folder visually nothing happens, but if I hit refresh it will show the folder being created.

To fix that you need to change any Explorer's options. You can change it back, it is matter of changing something.

Thursday, October 23, 2014

SharePoint 2013 prerequisites install on Windows 2012 R2

As you may notice the SP 2013 installer is not compatible with Windows 2012 R2 - follow the manual download and install path for this platform.

Also do not forget to assign min 2 vCPU to the VM, otherwise it won't install.

Tuesday, October 21, 2014

DPM error on System State

DPM cannot create a backup because Windows Server Backup (WSB) on the protected computer encountered an error (WSB Event ID: 517, WSB Error Code:  0xABEBE0). (ID 30229 Details: Internal error code: 0x80990ED0)

Get a script from

Try to backup system state with Windows Backup...

In my case it was disk space issue, as System State required 16GB

Thursday, October 9, 2014

MS CRM Outlook add-in is slow

If you find that Outlook MS CRM add-in is slow (very slow) check if you have Folder redirection enabled for the user.

"Folder Redirection with offline files is not supported for CRM for Outlook. If the CRM data is stored with redirected offline files, users may be unable to use CRM for Outlook."

External Office Web apps and Lync error 54031;reason="The WAC presentation failed with a server error.";

There are many sources that tells you how to troubleshoot the issue, but what I found in one installation is that the problem was that Web services External fqdn was not published in internal zone of split DNS. Note that we are talking about WAC in cloud (Amazon), so this architecture is not using Reverse Proxy.

So the solution was to ensure that  from internal frontend we can do


and it points to external IP, and that we can do from internal frontend (U turn)

telnet 443

Once it is ok you should observe in Frontend IIS log something like

GET /DataCollabWeb/wopi/files/5D-1-1CE946B access_token=AAMFEO8PHq4......

to ensure there is a connection to get a PPT file from meeting share