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Windows 7 lets you create a system repair disk (a CD) which you can use to troubleshoot many kinds of problems. If you bought a computer with Windows 7 pre-installed and it did not come with a Windows 7 DVD, then you should create the system repair disk.

In Windows 7, you would often see a flag type icon in the bottom-right of computer screen in the system tray. When you hover your mouse over it, it may tell you to Solve PC issues. This is Action Center message icon. Through this icon, Action Center alerts you of various security settings in Windows 7.

When you encrypt or decrypt files in in Windows 7, it requires an encrypting file system (EFS) certificate issued to you by Windows. If you lose this certificate, you will not longer be able to decrypt your encrypted files. Therefore you should always keep a backup copy of your EFS certificate.

Windows automatically installs latest hotfixes and updates. This is a very good thing but sometimes an update can behave erratically and cause problems in the normal working of Windows. Then it is better to uninstall that update.

If you have a computer that many people use through their own separate accounts, then you may want to encrypt some of your private documents. Windows 7 provides an easy way to encrypt any file or folder. Here is how you can encrypt files and folders in Windows 7.

If you are not able to hear the songs even at 100% volume in Windows 7, then you need to enable the loudness equalization. The loudness equalization uses understanding of human hearing to reduce perceived volume differences in Windows 7.

There is a possibility of system files getting corrupted after an ordeal of malware or virus infection. Luckily you can restore the files back to original form using the system file checker tool (SFC).