The British government is in the middle of the most savage round of emergency spending cuts since world war two.

They're trying to cut departmental budgets by 25%-40%.

They're trying to reduce the civil service head-count by 30% or thereabouts.

There is no money for replacing anything that isn't a life-or-death emergency. They just axed all new school building and structural maintenance across the entire country. Leaking roofs aren't going to be fixed.

With all due respect, upgrading ten year old computer systems (that still work, after a fashion) is the bottom of their priority tree.