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For some reason windows had been de-activated and now showing on my desktop not genuine windows warning. Well it must be corrupted licensing files.
Desktop shows down in left corner this warning:
Windows 7
Build 7600
This copy of Windows is not genuine
Resolve No. 1
If computer suddenly decide that you don’t have Genuine Windows any more, there are 2 solutions known to me. The first one is quickest:
- run cmd
- stop Software Protection Service : net stop sppsvc
- type cd %windir%ServiceProfilesNetworkServiceAppDataRoamingMicrosoftSoftwareProtectionPlatform
- tpye REN tokens.dat tokens.bar
- start again service: net start sppsvc
- run slui and write activation code (KMS ali MAK), but usually activation is done automatically
Resolve No. 2
On Microsoft’s Technet forum I found the solution how to re-activate windows code:
- open CMD as Administrator
- type slmgr /upk ( code is uninstalled)
- type slmgr /cpky (code is removed from registry)
- type slmgr /rilc (reinstall licencing files)
- 2 x restart computer and if it ask for validation code after first restart just click for alter
- after 2nd restart it will ask for validation code to write
- if in step 6 did not ask for validation, enter in run slui (windows 7, windows 8 & 8.1) or slui4 (windows xp) to open activation popup

And know non genuine validation warning is gone.
