Walid Hegazy

How To Do :) IT

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Windows Volume license Activation Key is Not Working!! …..Try phone activation

If you want to activate over phone any machine that doesn’t have internet connection.

Here is the steps to do it….


– First to Change Product Key Number in a Command Prompt Open an elevated        

   command prompt. In the elevated command prompt,Run in the command below.

      >>>>> slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX


– Type slui.exe 4 to access the phone activation screen and follow the steps to  

   activate over the phone.


–  If the phone number you are is not working find you local Volume license

   Activation Center from the Table Below.

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VMware vSphere Console – Unable to connect to the MKS: Failed to connect to server xxx.xxx.xxx.xxx:902

while trying to connect to any VM console on my  VCenter 5.5 server using the VSphere client I got this error …




After some digging about this issue I found that there is couple reasons might cause this  like the port being blocked or name resolution .so… I don’t have any fire wall that might block the connection….and it was pinging fine, so I added the “VCenter and ESXI” 

IP addresses to my lab that has the Vsphere client .

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DPM Is Not Writing On Tape !!!

Hi … today we are going to discuss some of the problems you might face while tacking backup using DPM 2012 on tape library..


First error I faced not too long ago is access denied error

Error: The operation failed because of a protection agent failure. ID 998 Details: Access is denied (0x80070005)


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DPM 2012 Tape Erase is taking TOO LONG !!!

last week I faced this issue while I was erasing tape on IBM Tape library from DPM Console so it moved to the Drive and 


 Erasing …. Erasing……Erasing …. Erasing   for more than 2 hours



after some research I found out that there are two types of erase ,long and short Smile


Though short erase is much faster than long erase, it does not completely erase the data from the tape “Only mark it as free”. If you have a policy that all data from the tape must be erased and unrecoverable, do not enable short erase.By default, when you erase a tape by using System Center Data Protection Manager (DPM) , DPM performs a long erase.


Enabling Short Erase

First make sure that your tape drive supports short erase, then you can enable it on the DPM server by creating the DWORD UseShortErase under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Data Protection Manager\Agent.



Set the value of the DWORD to 00000000.

After this value is set, all erase operations on the DPM server will be short erases.


To revert to long erases, remove this registry key.



Hope this was helpful ….Thanks for reading


SCCM 2012 Client Push fail with error code 0x800706ba

when pushing the SCCM clients behind fire wall you may get this error:

CWmi::Connect(): ConnectServer(Namespace) failed. – 0x800706ba

This error is  because the SCCM Client uses Dynamic RPC connections for WMI (the DCOM RPC uses callback for the event receipt which chooses random ports 1024-65534.)

you need to open the following ports :




Server Message Block (SMB) between the site server and client computer.



RPC endpoint mapper between the site server and the client computer.




RPC dynamic ports between the site server and the client computer.



Hypertext Transfer Protocol (HTTP) from the client computer to a management point when the connection is over HTTP.




Secure Hypertext Transfer Protocol (HTTPS) from the client computer to a management point when the connection is over HTTPS.



check  this …Windows Firewall and Port Settings for Client Computers in Configuration Manager

sooooo you need to open the Dynamic ports on the firewall 1024-65534 which  is not very good idea …. since you only need them for client push you can coordinate with you security admin to open them on branch per branch or subnet by subnet basis for a day or so and close these ports again as soon as you finish pushing your client “at least this is how it worked for me Smile

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SCCM 2012 R2 – OSD Task Sequence Error Code 0x80091007

I had this error while trying OS deployment at one of the branch sites last week, I didn’t have any one to get the logs from there “will do future post for that” so I started searching for that Error code it means issue with the hash value .


here is a check list followed in tis order:

1)  remove and re-distribute the content, or create the packages again.

2)Make sure there is no hidden file within any of the package source folders.

3)Make sure enable binary differential compression is enabled


4)last but not least , Changing the memory on the computer fixed the issue (it can be caused if there is RAM Fault ) if you have this issue with few number of machines try this firrst.