Failed XP Upgrade Downs 60,000 UK Gov't PCs
Most of the desktop computers in the UK's Department for Work and Pensions were paralyzed for four days on Monday, when a failed upgrade took them offline. The outage, covering 75 percent to 80 percent of the DWP's 80,000 PCs, is one of the largest in the UK government's not entirely impressive IT history.
According to one, a limited network upgrade from Windows 2000 to Windows XP was taking place, but instead of this taking place on only a small number of the target machines, all the clients connected to the network received a partial, but fatal, "upgrade."
Unfortunately the request was made to apply it live and it was rolled out across the estate, which hit around 80 percent of the Win2K desktops. This patch caused the desktops to BSOD and made recovery rather tricky as they couldn't boot to pick any further patches or recalls.