Windows users told 'switch on' setting that can block cyber attack

Turning on this one computer setting could be the key to protecting you from being hacked. Windows computer owners could help to protect themselves from ransomware by using this folder protecting feature.

Ransomware is a type of malicious software that prevents you from accessing your computer files, systems or networks and demands you pay a ransom to regain access. Consumer expert for Which? Tom Morgan has revealed the one computer setting which could help stop one of the nastiest online threats Windows users face.

He says that Windows 11 and Windows 10 include a feature called controlled folder access. As it isn't always enabled by default, Tom recommends that Windows users check their settings to ensure that it's enabled.

Once it's switched on, it prevents untrusted apps from making changes to your important files or from holding them ransom. Tom explained that Windows users can check that the setting in enabled by opening up 'settings', then going to 'privacy & security', followed by 'Windows security' and then to the 'virus & threat protection' section.

Windows users can then scroll down to the 'Ransomware protection' option and select 'Manage ransomware protection'. He then says to turn on 'controlled folder access' and, if prompted, approve the change using user account control.

Tom explained that controlled folder access works by blocking untrusted apps from making changes to your files by adding an extra layer of protection. He said: "Once enabled, Controlled folder access helps to protect files stored in folders such as Documents, Pictures, Videos, Music and Desktop by blocking untrusted apps from making changes to them.

"While antivirus software aims to detect and remove malicious programs before they cause damage, Controlled folder access protects your files even if ransomware makes its way onto your PC.

"This feature will not stop every cyber-attack, but it adds an extra layer of protection against ransomware by helping to prevent unauthorised changes to your files. Combined with good online security habits it is a simple and quick way to better protect your data."

Tom also recommended some other ways you can help to secure your data, including keeping windows up to date by turning on automatic updates, backing up your important files, turning on two-factor authentication (2FA) and using strong, unique passwords.

Experts at Windows also suggest using a secure browser, and storing important files on Microsoft OneDrive. A spokesperson for Windows said: "Store important files on Microsoft OneDrive.

"OneDrive includes built in ransomware detection and recovery as well as file versioning so you can restore a version of a file. Use a secure, modern, browser such as Microsoft Edge.

"Restart your computer periodically at least once a week - this helps ensure the applications and operating system are up-to-date and helps your system run better."