All versions of Windows covered on the A+ Certification Exams feature disk management tools for checking for disk errors, and all but Windows NT 4.0 also include disk defragmentation tools. These tools are covered in the following sections.
Using ScanDisk and CHKDSK
All versions of Windows covered on the A+ Certification Exams provide integrated error-checking programs for fixing disk problems. Windows 9x/Me use ScanDisk; Windows NT 4.0/2000/XP use CHKDSK. In Windows Explorer/My Computer, both are referred to as error checking. To run error checking from the Windows GUI
Open the Windows Explorer.
Right-click a drive, select Properties, and then click the Tools tab.
Click Check Now to start the process (see Figure 18.22 ...