FIX - Windows Features showing blank and Patch error 0x800B0101 2148204801

Back in Noberber 2012 Microsoft released KB2749655 "to address an issue in which the digital signature on files produced and signed by Microsoft will expire prematurely" as described in Microsoft Security Advisory (2749655).

Here are some real life scenarios where this patch did help fixing the following issues: 

• "Turn Windows features on or off" showing blank:
  
  
  Users are no longer able to view the installed Windows 7 features on their machine, nor could they enable or disable them. Actually if you try to list, add or remove the features with DISM you would also get an exit code 0x800B0101 (-2146762495) and the DISM.log would redirect you to the CBS.log as descripted bellow. 

• Uninstalling badly signed patches would throw a Windows Update Standalone Installer error reading:
  
   "Installer encountered an error: 0x800B0101 A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file."

• Installing  badly signed patches (i.e.: KB2705219)  would throw the error HRESULT = 0x800B0101 - CERT_E_EXPIRED]  in CBS.log.
  And the error: 2148204801 would appear in the event viewer with the description "A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file." 

Hopefully this will be of help for you too and if you do get across additional scenarios, please add them in the comment sections for everyone's benefit !!