Warning: The upcoming ‘Windows 10 October 2018 Update’ might break your PC’s Windows installation.

Discussion created by elstaci on Sep 30, 2018
Latest reply on Oct 1, 2018 by elstaci

My brother sent me this warning about the new Windows 10 October upgrade that someone else sent him:


1. You will have no choice in the update. It will be

happening to all Windows 10 PC's and devices beginning

sometime in October.


2. Exactly how much free space is needed,

isn't clear, but it could be 10gb, and since

Windows 10 already takes up 20gb, you may need more than

32gb to do the update with a Restore Point.


3. Further, since Windows Update doesn't check

to see if there is enough free space - if it runs

out of room - your PC, your Laptop, or Tablet may

be completely hosed. You won't be able to start

it, much less recover. Hopefully, you know someone

who can boot it off a USB drive and force a restore from

the last Restore Point, or who can do a reinstall of

Windows 10, without loosing your data.


4. So make sure you have at least 15gb FREE,

preferably 32gb free. Clear out your junk files -

details on how to do it, can be found here


s-in-windows-7-8-1-and-10/> . Also ensure that

your data files are backed up. My tech

professional added to empty the trash folder in your

email client, because it can get very large without

being noticed.


My brother sent in the email some bad links to the above article. But did find this article about the above mentioned Windows 10 Upgrade. This seems to affect mainly Laptop:


Well, October is just around the corner and that means Microsoft will soon be releasing the annual Fall update to Windows 10.

Unfortunately, the upcoming release of the “Windows 10 October 2018 Update” will end up preventing a lot of PCs from booting up into Windows after the update is installed.

The problem is Windows will need a certain amount of free disk space on the C: drive in order to successfully install the update.

Microsoft hasn’t stated how much free space will be needed (probably because the exact amount will vary a bit from system to system).

However, since previous semi-annual updates have required between 16GB and 20 GB of free disk space that’s probably how much this one will require as well.

This issue will affect any PC with a full C: drive, but it’ll likely affect ALL of the inexpensive laptops that came with a paltry 32GB of flash storage.

In other words, if your laptop has just 32GB of flash storage it will almost certainly be affected by this issue even if the C: drive isn’t completely full.

To quickly summarize the above, installing the “Windows 10 October 2018 Update” on a system that doesn’t have enough free space available on the C: drive will break that machine’s Windows installation and prevent it from successfully booting up into Windows after the update procedure is finished.

Microsoft will be prompting users with low disk space to free some up AND attach an external drive before continuing with the update installation. This screenshot shows what that warning will look like:

If this box pops up on your screen you’ll be required to complete both Step 1 (free up disk space) and Step 2 (connect an external storage device with at least 10GB of free space on it) before you’ll be allowed to continue installing the update.

I’ve heard from other techs participating in the Windows Insider Program who have installed Preview builds of this update that the update will occasionally break a PC’s Windows installation even after completing the two steps required by the message above.

Even worse, the automatic roll-back to the previous version of Windows 10 after an update fails seems to be failing on occasion as well.

Therefore, I strongly recommend that you create a System Image Backup of your computer’s C: drive before attempting to install the “Windows 10 October 2018 Update”.

Bottom line: Most folks will be able to install this major update on their PC’s with no problems whatsoever. But if you happen to be one of the unlucky few who run into problems with the update, having a System Image Backup on hand will help you recover fairly quickly.