If you’ve not been offered any security updates since January there’s a reason. It appears that some Antivirus programs make unsupported API calls to Windows kernel memory that interfere with January’s updates (especially Meltdown and Spectre patches) and may lead to BSoDs (Blue Screen of Death). To protect customers Microsoft have stopped offering security updates to devices with unsupported AVs.
While waiting for a fix from AV vendors (and if you’re absolutely sure you know what you’re doing) you can temporarily disable the compatibility check. The fix is just a registry key:
Sometimes we need to create users/groups/computers in Active Directory that will be used temporary (by a contractor, for testing etc.). The typical workflow is: Create > Use for a while > Delete. The deletion is manual and often these objects are being forgotten which poses some security risks.
It is little known fact that we can create the so called Dynamic objects (DOs, a.k.a. temporary objects) that get deleted from AD automatically when the associated TTL expires. Microsoft added this capability in Windows Server 2003. In fact the “Dynamic object” is an auxiliary class (OID = 22.214.171.124.4.1.14126.96.36.199). When linked to an object it adds some new attributes like the entryTTL (Entry-TTL) and ms-DS-Entry-Time-To-Die attribute.
Often developers and related OPs need to test stuff on Linux (web, cli, .NET Core etc.). The typical approach was to spin up a Virtual machine (VM), install and configure a Linux distro and play with it.
Main Cons include: you need a hyper-visor software, enough RAM, fast hard drive, to fight with basic operations like cope-paste text and files between machines etc.
Well, good news! As of the Anniversary Update Windows 10 supports the so called “Windows Subsystem for Linux” (WSL). It allows you to run natively* most of the non GUI Linux stuff**on Windows without the overhead of a virtual machine.