Technology: Windows 10 support ends on October 14th; Will 1.4 billion PCs become useless? However, after October 14th, 2025, support will be completely discontinued. Representational ImageNew Delhi: Microsoft has officially announced that Windows 10 support will end completely on October 14th, 2025. After this, 1.4 billion devices worldwide will no longer receive any security updates, feature upgrades, or technical support. However, after October 14th, 2025, support will be completely discontinued.