Windows 7 Update Error 80246005 — Fix (Plus 80092004 at the End)

On Windows 7 you can’t simply select all updates at once and click Install: with a large batch after a clean install, the system can’t put them in the right order. Doing that leads to Windows Update error 80246005.

In short: install update KB2647753, then install the rest in small batches — about ten at a time, rebooting as needed. This matters especially on slow PCs with little memory (up to 2 GB on x86).

How to fix error 80246005

1. By trial and error I found that you first need to install update KB2647753.
2. Even after that not all updates will install right away — at least a couple will throw other errors. So select about ten small updates (not cumulative ones), install them, reboot if needed and continue.
3. Repeat until the list is empty.

Error 80092004 at the end

When only a few updates are left, you’ll most likely hit another error — 80092004. Since August 2019 Microsoft signs updates only with SHA-2, and a fresh Windows 7 doesn’t understand it. The fix:

1. Install KB4490628 — the servicing stack update.
2. Install KB4474419 — SHA-2 code signing support.
3. Reboot and run Windows Update again.

You can download both manually from the Microsoft Update Catalog (catalog.update.microsoft.com) — search by the KB number and pick the version for your system (x86 or x64).