You can still check Windows 10 for available updates through Windows Update, but the operating system is no longer in its normal standard-support period. Standard Windows 10 support ended on October 14, 2025, so the updates available to a particular PC now depend on its edition, servicing state, and whether it participates in an applicable Extended Security Updates program.
Check Windows Update first
- Open Settings.
- Select Update & Security.
- Open Windows Update.
- Select Check for updates.
- Install applicable updates and restart when required.
Windows Update is preferable to downloading random update packages because it evaluates applicability and dependencies for the PC.
Use Microsoft Update Catalog when necessary
The Microsoft Update Catalog can be useful when you have a specific KB number, need an update for offline servicing, or are troubleshooting a deployment. Search for the exact KB and choose the package that matches the Windows version and processor architecture.
Do not assume that the newest-looking catalog entry applies to your computer. Read Microsoft’s release information for the update and confirm prerequisites before installing a standalone package.
If Windows Update is failing
Restart the PC, confirm there is adequate free storage, check the date and time, and retry Windows Update. Persistent errors may require Windows’ built-in troubleshooting and repair tools or investigation of the specific error code. Avoid third-party “update fixer” programs that make undocumented system or Registry changes.
Understand the post-support situation
Installing every update offered to an ordinary Windows 10 installation does not make the operating system generally supported again. If the PC is eligible for an Extended Security Updates program, follow Microsoft’s enrollment and servicing requirements. Otherwise, moving to a supported operating system is the better long-term security plan when the hardware permits it.
Back up important files before major servicing or operating-system upgrades, especially on an older computer.
Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.