I had instaled Windows 8.1 Enterprise and when i check slmgr /dlv it says i still have 999 windows rearm count. What does it mean ?

Uzha

It means either the system is not legit or is damaged.  One way to find out is this

Post your issue to the Windows 7 Genuine Issues forum.  Here are the instructions on how to produce a diagnostic:

MGA Diagnostic Report:

To properly analyze and solve problems with Activation and Validation, we need to see a full copy of the diagnostic report produced by the MGADiag tool (download and save to desktop -http://go.microsoft.com/fwlink/?linkid=52012 )

Once downloaded, run the tool. Click on the Continue button, after a short time, the Continue button will change to a Copy button. Click on the Copy button in the tool (ignore any error messages at this point), and then paste (using either r-click/Paste, or Ctrl+V ) into your post.

One Issue Per Thread:

Most Activation and Validation issues look the same, on the surface, but can have many different causes and fixes. This is why we ask for a diagnostic report and this is also why we ask that you create your own thread for your issue (in other words, don't post your issue in another person's thread). 

It just becomes too complicated to try to troubleshoot multiple different issues in the same thread.

Instructions by  Kamin of Ressik