System Hangs at Splash Screen or Boot freezes on ACPITABL.DAT

Often we have seen operating system hanging at Splash screen as seen in the screenshot below. For Windows Server 2003: For Windows Server 2008 and above: As the first troubleshooting step, you would like to boot into safemode and you would notice operating system hangs at acpitabl.dat. See image below:   Unplug any external Devices… Read more

Operating system comes up with Blue Screen Error: Stop c000021a

In this blog we are going to discuss about how we can decode and fix operating system crashes with Stop c000021a. Below is the first screen you will see after POST, followed by the bugcheck information. Here is the detail bugcheck information: The session manager initialization system process terminated unexpectedly with a status of 0xc000003a(0x00000000,0x00000000)… Read more