NEW YORK Microsoft's plan to halt updates for its Windows 10 operating system in mid-October has raised hackles among campaign groups and left some users worried they must buy new computers to be safe from cyberattacks. Computers running Microsoft's 2015-vintage Windows 10 will receive no further updates from the American tech giant from Oct. 14. Such downloads were used to "regularly patch [update] the operating system because it had become the target of many cyberattacks", said Martin Kraemer,