Windows Mobile 4.1

Windows Mobile 4.1 is a mobile phone operating system developed by Microsoft. It is based on Pocket PC 2002.

2007 disaster patch
Since, then during it's development the Pre-Hybrid kernel had a flaw it was patched. But, another flaw was discovered by an intern employee at Microsoft around late 2006. This flaw was not fixable similar to the older bug which was just how the desktop glitches out every 3 seconds. This flaw actually messed up the date and preventing it from going any further than December 31, 2006 which means if passed that date the operating system will just boot loop and, if unlucky you'll get a black screen of death which is very rare happening on this operating system resulting 3.1 Million computers on the network with this operating system to have it unpatched and unsafe security hacks happening. So, on March 17, 2006 Microsoft responded with a patch which is 4.195 it included extending the system date to March 19, 2007. More security was put in place for this operating system with the patch itself.