Canonical: https://screensie.com/knowledge-base/security/

Practical security guides and troubleshooting. Browse Security guides with practical instructions, troubleshooting steps, and related topics to help you.

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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 Defender**Windows Defender instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/windows-defender/)
[**Firewall**Firewall instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/security-firewall/)
[**BitLocker**BitLocker instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/bitlocker/)
[**Permissions**Permissions instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/security-permissions/)
[**UAC**UAC instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/uac/)
[**Accounts**Accounts instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/accounts/)
[**Passwords**Passwords instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/passwords/)
[**Certificates**Certificates instructions, reference material, and troubleshooting.](https://screensie.com/knowledge-base/certificates/)




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