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Security
Computer security is the set of controls used to protect devices, accounts and data from unauthorized access or unwanted changes.
Practical security guides and troubleshooting.
Which security guide matches an access problem?
Start with the specific task and account involved. Use Users and groups for account membership, and the relevant file, network or application guide for its access settings. Record the error before changing permissions.
Should I turn off protection to make a task work?
Keep protection enabled while identifying what blocked the task. Confirm the file's source and the exact security message, then use the approved process for that device or organization. A successful task after disabling protection does not explain whether the task was safe.
Windows DefenderWindows Defender instructions, reference material, and troubleshooting.FirewallFirewall instructions, reference material, and troubleshooting.BitLockerBitLocker instructions, reference material, and troubleshooting.PermissionsPermissions instructions, reference material, and troubleshooting.UACUAC instructions, reference material, and troubleshooting.AccountsAccounts instructions, reference material, and troubleshooting.PasswordsPasswords instructions, reference material, and troubleshooting.CertificatesCertificates instructions, reference material, and troubleshooting.