Microsoft fixes the Windows 8 Xbox sign-in bug — and XCT's Win8 Bridge helped get it there

Site news · 2026-06-05

For months, a wave of older Windows 8 / early-UWP Xbox games could no longer sign in to Xbox Live — breaking achievements across hundreds of titles. The cause: those games still used the deprecated XBL2.0 auth handshake that Microsoft's servers had stopped honouring.

We built the open-source XCT Win8 Bridge as a stop-gap: it sits between the game and Xbox Live and transparently swaps the legacy XBL2.0 token for a modern XBL3.0 one, restoring sign-in and achievement unlocks on affected titles (Reckless Racing was an early confirmed fix).

The problem — and the bridge — got picked up across the community: r/xbox , Pure Xbox (“might have solved how to fix hundreds of broken Windows games”).

Then came the best possible outcome: Microsoft fixed it at the source. An Xbox engineer confirmed that they’d pushed a server-side fix — “we pushed out a fix yesterday that we believe may fix the issues with Windows 8 sign-in and games unlocking achievements.”

Players are confirming it in the wild — the “Windows 8 games are being worked on / working again” thread on r/xbox is filling up with success reports.

That means many of those broken Windows games should now sign in and unlock achievements on their own — you may not even need the bridge anymore. It stays available for anything still affected, but the real win is the fix landing where it belongs: on Microsoft’s side. Huge thanks to everyone who tested, reported and shared. 💚

Next up: the Windows Phone devices are coming out of storage 👀