Windows low storage warning appears on Marks & Spencer sign
A digital sign outside Marks & Spencer’s Oxford Street food hall displayed a Windows low disk space warning instead of its usual promotional message. The visible glitch turned the screen into an inadvertent advert for the challenges of running a Windows-powered display.
The article suggests Windows 10 may be responsible, though the cause is not confirmed. It notes that Windows 10 LTSC 2021 remains supported until 12 January 2027, while the IoT Enterprise version has support until 13 January 2032; Windows 10 requires at least 32 GB of storage. M&S previously estimated the cost of cleaning up after its 2025 cyber attack at about £136 million.
In short
- M&S’s Oxford Street sign showed a Windows low disk space warning.
- Windows 10 requires at least 32 GB of storage.
- The sign’s specific cause remains unconfirmed.
Explained simply
Digital signs are computer screens used to display adverts and information in public places. Like other computers, they need storage space for software and files; when that space runs low, Windows can show a warning on screen.
Windows 10 is an operating system, and some versions are designed for business or specialist devices such as displays. Their support periods differ: the standard long-term servicing version is supported until January 2027, while the IoT Enterprise version is supported until January 2032.
Marks & Spencer is a British retailer that has also faced disruption from a cyber attack in 2025, which it said would cost about £136 million to address. That earlier incident is separate from the sign’s storage warning; the cause of the display problem has not been confirmed.
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Originally published by The Register as “Chocolate Caterpillar or Chocolate Teapot? Top up the disk space for Windows 10 to find out”.