Valve’s Steam client update of November 11, 2026 lists “a workaround for updates occasionally hanging at 99%” (in the Stable notes on the Steam Deck news page) and a fix for Steam Cloud Sync wrongly showing a conflict in some games, such as Monster Hunter World. Has it changed anything on your PC or Steam Deck?
Video: “Achievement Sets For Everyone, Plus A Huge Linux Change”, Steam Flow YouTube channel (independent creator, not Valve), November 12, 2026, 10 min 42 s. A walkthrough of the November 11 client update (desktop, Linux 64-bit, Remote Play HDR, Achievement Sets); not a troubleshooting tutorial: https://www.youtube.com/watch?v=AthSbe_JQeo
Valve’s official steps if it still happens: for a stuck download, Steam › Settings › Downloads › Clear Download Cache (installed games are not affected, you sign in again), then Properties… › Installed Files › Verify integrity of game files. For a cloud conflict, pick the most recently modified version only after checking the dates against when you really last played; playing in Offline Mode is “very likely to cause a conflict”.
Our questions:
- Which game or update was stuck at 99% for you, and on what (Windows PC, Steam Deck, Linux)? Is it gone since the November 11 update?
- Do you get a Steam Cloud conflict every time you launch a game? Which one, and has it stopped after the update?
- What actually unstuck your download: clearing the download cache, verifying files, changing the download region, a restart, or nothing?
- Have you ever lost progress by picking the wrong side in a cloud conflict? How did you decide which save to keep?
- Friends list stuck after a failed login at launch: did the fix work for you?
Everything Valve lists in the update and the official Steam Support steps: https://tricknfix.com/articles/steam-client-update-november-11-2026-updates-stuck-at-99-cloud-sync-conflict-fix-achievement-sets-official-fixes/
Sources: Steam Client Update - November 11th https://store.steampowered.com/news/app/593110/view/678515036155543747, Steam Deck news, Steam Client Update: November 11th https://store.steampowered.com/news/app/1675200/view/687522235410284741, Steam Support, Steam Cloud https://help.steampowered.com/en/faqs/view/68D2-35AB-09A9-7678 (read November 12, 2026).
Image: new Steam achievements page with Achievement Sets, official Valve image, © Valve Corporation.
French version of this topic: https://tricknfix.com/fr/sujet/mise-a-jour-steam-bloquee-a-99-ou-conflit-steam-cloud-a-chaque-lancement-la-mise-a-jour-du-client-du-11-novembre-a-t-elle-regle-le-probleme-e205a2355a/