Free Portable Updater to Update Offline Windows PCs: Portable Update

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Portable Update is a free portable updater for Windows which allows you to update Windows systems which are not connected to the internet. It updates them by first downloading updates to a USB flash drive on a computer that has internet access. Downloaded updates are then simply carried to the Windows PC that needs to be updated where you can use Portable Update to install updates that are missing.

Screenshot below shows Portable Update running with Search tab open. When you run this free portable updater for the first time the list of required system updates that you see on the image above will not be available. Search tab is used for exactly that, search for all the available Windows updates which can be downloaded. Other tabs are available next to Search in the top left corner, and they are pretty much the only menu that you get.

Portable Update default window

Similar software: Outdate Fighter, Ketarin, Soft 4 Boost Update Checker.

Key features of Portable Update are:

  • Free and simple to use – free for personal use, quick update download
  • Update downloader – downloads all the available Windows updates
  • Allows you to update system from LAN, USB drive, shared path, etc.
  • Installer – it also installs downloaded updates for you
  • Unlimited updates – update multiple PCs from one update download
  • Works with Windows 2000 SP3 – Windows 8, including server editions

How to update Windows without Internet access using Portable Update free portable updater for Windows

When you run Portable Update, it needs to download a couple of additional components in order to work. Run it from a USB drive on a computer with web access.

Once the initial download finishes, you should see the main interface, the one seen on the image above. Click on the Search tab and then on Start in the top right corner. Portable Update will search for available updates for you to download.

Portable Update download

Search will find all the available updates for the system where you run Portable Update. Note that you can run Search even if you are not connected to the internet, in fact you have to. It will create a list of necessary updates on the offline computer, put that list into config files on USB flash drive after which you just have to run the program on another computer with web access and download the updates, which can be seen on the image above.

Portable Update cache

Updates are downloaded in a special Cache folder inside the Portable Update directory. You have to perform another search using the Search tab so that the downloaded updates become available in the Install tab from where you can install them by putting check marks next to them and clicking Start in the top right corner.


If security is very important to you, it’s a good idea to have isolated computers, which aren’t connected to the Internet, where you can keep important data and work. It’s also possible that you have a computer without internet access. Portable Update is a life saver in these types of situations. It might seem that it’s complicated to use, but once you start using it, you’ll see it’s not. Just remember, Search >> Download >> Search Again >> Install.

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Works With: Windows
Free/Paid: Free

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