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Some files refuse to delete and give all kinds of error messages because they are locked. They cannot be deleted without first unlocking them. You can use free LockHunter to unlock such files and delete them. LockHunter is a free file unlocker and can help you in those difficult situations when a stubborn file just refuses to delete. It does not delete the locked files completely but sends them to the Recycle Bin, so you can recover them later if needed.

It is worse to use a weak password than not to use any password at all. A weak password gives you a false assurance that your account is protected while cracking or guessing that password is a matter of few seconds for any hacker. This is why all the security firms and experts give emphasis on using only strong passwords. If you do not how to make a strong password, then you can use freeware PassworG to quickly generate one or more strong passwords.

ClamWin is a free, fast and open source antivirus for Windows. Unlike most other antivirus products of today, it supports all the versions of Windows starting from Windows 98 – making it an ideal choice for older systems. The only thing that lacks in it is a real-time scanner component. But even without a real-time scanner, it can be used as an on-demand scanner for scanning and removing malware and viruses from your system.

It is common knowledge for most of the computer users, that when you delete files from a disk, they are not actually deleted and can be recovered later with freely available tools like Recuva. What you can do is securely erase all your personal files using a tool like Hard Wipe. Hard Wipe is a freeware tool that can be used to wipe out data in files, folders or disks to an extent that it becomes irrecoverable.

Any advanced user using proper tools can recover deleted files. Such file recovery tools are available freely over the internet. So if you are throwing or giving away your hard disk, make sure you completely erase all the data on it or it can be recovered to reveal your personal or financial information. The freeware Disk Wipe tool can be used to completely wipe your hard disk leaving nothing behind.

Malware authors have shifted their focus to other operating systems like Apple Mac and Google Android too. According to a report more than sixty new malware were found in the last quarter of year 2011 alone. Despite this rapid growth of Mac malware in the recent times, many Mac users are still not protecting themselves from the threat. Now you can get free protection against malware on Mac using the Avira Free Mac Security.