Guernsey's government says it's run checks this morning following the global cybersecurity update that's taken out news broadcasters and affected airports and rail services.
A spokesperson for the States says checks have been made on all systems that rely on Microsoft.
There has been an impact on the Schools' Information Management System, known as SIMS, and Beau Sejour, which as of lunchtime on 19 July was still having problems processing card payments.
SIMS, says the spokesperson, has had most of its functionality restored.
Guernsey's port and airport have run smoothly throughout the period of disruption.
The States says it's been in touch with major island retailers and only one reported a problem taking card payments but that has been resolved.
Government says it will continue to monitor the situation.
Guernsey Waste improves the quality of its free garden compost
Guernsey cat lover to ride the length of Britain in nine days
Unclaimed CI Co-op cash funds community projects
Work to commence on 70 affordable flats and homes in Guernsey
A new tax, more 'proportionate' to wealth, to be put to Guernsey's States
Guernsey gives £75k for Islands Unlimited inter-islands sailings
Guernsey tax package to raise more States income but protect low earners
Changes to make Guernsey's buses more reliable
