Ch 111 File and Disk Maintenance

Ch 112 Overview How to avert hard drive problems and how to avert conditions that can cause data errors will be discussed.

Ch 113 Overview Will learn the purpose and function of and then use Check Disk, Disk Cleanup, Disk Defragmenter, and Task Scheduler.

Ch 114 Overview The importance of and procedures for backing up and restoring files will be discussed.

Ch 115 Overview Will create an Automated System Recovery Disk for start-up problems.

Ch 116 Overview The purpose and function of the Registry will be discussed.

Ch 117 Overview Will use the Computer Management tool to explore and manage your computer system.

Ch 118 Detecting/Repairing Disk Errors with Check Disk è Physical hard drive problems: å Wear and tear on hard disk Ø Correct with Power Management and/or Hibernation å Head crash è Software-related problems: è Viruses

Ch 119 Detecting/Repairing Disk Errors with Check Disk Some error causing conditions to data that may be repairable: è Power surges è Power outages è Locked system

Ch 1110 Detecting/Repairing Disk Errors with Check Disk Check Disk: è Locates/repairs problems on hard disk è Checks for logical errors in file system åLost clusters åCross-linked files

Ch 1111 Detecting/Repairing Disk Errors with Check Disk è FAT and directory table work in conjunction. è Pointers, chain together all clusters that make up an individual file.

Ch 1112 Detecting/Repairing Disk Errors with Check Disk Lost Clusters: è Have no directory entry in directory table è Do not belong to any file è Take up disk space - è Unavailable for new data åCannot be retrieved/deleted

Ch 1113 Detecting/Repairing Disk Errors with Check Disk Figure 13.1 Lost Clusters p. 722

Ch 1114 Detecting/Repairing Disk Errors with Check Disk Check Disk: è Can fix lost clusters automatically or è Save them to disk as files

Ch 1115 Detecting/Repairing Disk Errors with Check Disk Cross-Linked Files è Two or more files claim same cluster as part of their chain è One file claims same cluster twice è D ata in cross-linked cluster: åUsually correct for only one file åMay not be correct for any file

Ch 1116 Detecting/Repairing Disk Errors with Check Disk Figure 13.2 Cross-Linked Files p. 722

Ch 1117 Detecting/Repairing Disk Errors with Check Disk Figure 13.3 Another Cross-Linked File p. 723

Ch 1118 Detecting/Repairing Disk Errors with Check Disk Check Disk: è CAN check/repair local hard drives, floppy disks, and removable drives è CANNOT find/fix errors on CD- ROMs or network drives

Ch 1119 Detecting/Repairing Disk Errors with Check Disk Check Disk: è Should be used on a regular basis è Close all open programs when using this program

Ch 1120 Detecting/Repairing Disk Errors with Check Disk If disk is formatted at NTFS, Windows XP Professional will automatically (without running Check Disk): è Log all file transactions è Replace bad clusters è Store copies of key information for all files on NTFS volume

Ch 1121 Activity - Using Check Disk KEY CONCEPTS: è Invoking Check Disk program è Two options available in Check Disk Options åAutomatically fix file system errors åScan for and attempt recovery of bad sectors è Status bar

Ch 1122 Cleaning Up Your Disk Computer performance depends a great deal on the hard drive.

Ch 1123 Cleaning Up Your Disk Need disk space for: è New files è Temporary files è Documents waiting to be printed è Cache files è Recycle

Ch 1124 Cleaning Up Your Disk Disk cleanup is a utility that helps maintain the hard disk.

Ch 1125 Activity - Using Disk Cleanup KEY CONCEPTS: è Computer analysis è Confirm files to be eliminated è Options to free up disk space è System Restore è Restore Point

Ch 1126 Contiguous and Noncontiguous Files Windows XP Professional keeps track of data by placing it into a file.

Ch 1127 Contiguous and Noncontiguous Files To store and retrieve files: è Disk divided into numbered blocks called sectors è Sectors grouped into clusters

Ch 1128 Contiguous and Noncontiguous Files When a file in FAT or FAT32 deleted: è Only entries in FAT deleted è Space file occupied becomes available

Ch 1129 Contiguous and Noncontiguous Files Files are: è Contiguous è Noncontiguous (fragmented)

Ch 1130 Contiguous and Noncontiguous Files Fragmented disk: è Composed of noncontiguous files

Ch 1131 Optimizing the Performance of Disks The defragger/disk optimization program: è Used to optimize disk performance

Ch 1132 Optimizing the Performance of Disks Prior to running Disk Defragmenter: è Run Check Disk and Disk Cleanup è Remove all lost/cross-linked clusters and unnecessary files è Close All open programs è Allow ample time è Back up disk

Ch 1133 Activity - Using Disk Defragmenter KEY CONCEPTS: è Floppy disks cannot be defragmented è Where the defragger can be started è Function of line color è Volume Information

Ch 1134 Starting Programs Automatically Task Scheduler can be used to schedule any program to run at any time.

Ch 1135 Starting Programs Automatically When scheduling tasks to run unsupervised, be sure task... Ø does not need user input. Ø can exit when task is completed.

Ch 1136 Activity - Using Task Scheduler KEY CONCEPTS: è Scheduling maintenance with Task Scheduler åUser scheduling must be identified è Advanced features on menu bar è Extension of Task Scheduler files

Ch 1137 Backing Up Your Data è Backup is a duplicate of file/s on a disk copied to another medium. åUse tape backup unit or removable drive with removable media è Retrieve files by restoring them.

Ch 1138 Backing Up Your Data When you are working: è Create settings, install/delete programs è Add/make changes to system Registry åIf Registry becomes corrupt will not be able to boot Windows XP Professional

Ch 1139 Backing Up Your Data It is important to backup your entire hard drive.

Ch 1140 Backing Up Your Data Every file has attributes. è One attribute is archive bit. åThis bit is either on or off.

Ch 1141 Backing Up Your Data Windows XP Professional supports five methods of backup: è Normal (Full) Backup è Incremental Backup è Differential Backup è Daily Backup è Copy Backup

Ch 1142 Backing Up Your Data Full backup:  Longer to backup  Faster to restore Incremental backup:  Faster to backup  Slower to restore

Ch 1143 Backing Up Your Data Usually use combination of : è Full and incremental backups åFaster to backup åSlower to restore è Full and differential backups åLonger to backup åShorter to restore

Ch 1144 Backing Up Your Data è Need a regular backup schedule. è Wise to have more than one copy of backup media.

Ch 1145 Backing Up Your Data Uses of Backup: è Archive data è Make room on hard disk è Transfer files to other computers è Make new computer look like old system

Ch 1146 Activity - Using Backup KEY CONCEPTS: è Backup and Restore Wizard è Four choices in Backup files & Settings è Backup Wizard window Vs Explorer window è Types of backups è Backup labels

Ch 1147 Restore Backup/Restore Wizard: è Backup option å Used to copy some/all files to original disk, another disk, or another directory è To restore choose åRestore and type of restoration åRestore Wizard

Ch 1148 Activity - Restoring Files KEY CONCEPTS: è Use of Backup or Restore Wizard è Where files can be restored è Determining how files will be restored è Wizard does not have to be used to backup or restore files è When Backup tasks can be scheduled

Ch 1149 Automated System Recovery Automated System Recovery (ASR): è Part of a built-in repair system for solving system problems å Relies on creation of Automated System Recovery è Restores system as it was when ASR created or updated

Ch 1150 Automated System Recovery Automated System Recovery restores system as it was when ASR was created or updated.

Ch 1151 Automated System Recovery To repair system need ASR, availability of backed up system files and Windows XP Professional installation CD.

Ch 1152 The Registry Configuration information: è Contains data about the system åHardware åApplications åUser preferences

Ch 1153 The Registry Previous Windows versions used.INI files for configuration information.

Ch 1154 The Registry Two types of initialization files: è System initialization files è Private initialization files

Ch 1155 The Registry è Previous window versions had two primary initialization files: å WIN.INI å SYSTEM.INI è Also used REG.DAT

Ch 1156 The Registry Today, Windows XP Professional uses single location, the Registry, for hardware, system software, and application configuration information.

Ch 1157 The Registry Registry information comes from: è Installation of WXP Professional è Booting of WXP Professional è Applications è System and User interaction

Ch 1158 The Registry Registry: è Critical to the operation of Windows XP Professional è Files kept in %SystemRoot%\System32\Config è Back up files kept in %SystemRoot%\Repair\RegBack

Ch 1159 The Registry The Registry can be restored by using: è Recovery Console - if using ASR disk è “Last Known Good Configuration” option è Safe Mode å Loads minimum amount of drivers and functionality that allows Windows to run

Ch 1160 The Registry Figure 13.4 The Startup Menu p. 761

Ch 1161 System Restore System Restore can: è Undo changes made to computer è Roll back computer to more stable state è Save messages, browsing history, etc. è Use calendar to select which date you want to restore to è Provide several restore points

Ch 1162 System Restore è System restore does not save or restore documents. è All system restores are reversible

Ch 1163 Activity - Using System Restore KEY CONCEPTS: è Created restore point åMake name of restore point brief but meaningful è Displayed restore points åAny bold date on calendar holds restore point

Ch 1164 Plug and Play and Device Drivers Plug and Play automates adding new hardware to computer.

Ch 1165 Plug and Play and Device Drivers Windows XP Professional has added support for new type of devices.

Ch 1166 Plug and Play and Device Drivers For Plug and Play to work: è Computer needs Plug and Play compatible BIOS è Device to be installed is Plug and Play compatible è Compatible Plug and Play Operating System

Ch 1167 Plug and Play and Device Drivers Full support in Windows XP Professional requires: è ACPI è BIOS è Windows XP Professional operating system è Device to be installed åDrivers for device

Ch 1168 Plug and Play and Device Drivers Legacy hardware: è Hardware that is not Plug and Play compatible.

Ch 1169 Activity - Looking at Plug and Play KEY CONCEPTS: è Determining if computer and Plug and Play are compatible è Driver tab (not all devices have one) åDriver details, Update driver å Roll back driver, Uninstall è Device manager window used to determine if devices are working properly

Ch 1170 The Paging File Computer’s system performance impacted by: è Processor è Amount of physical memory

Ch 1171 The Paging File Paging file: è Space on the hard drive used as virtual memory when the system runs out of physical memory

Ch 1172 The Paging File Paging file: è Slows down performance è Enlarges operating space

Ch 1173 The Paging File è User can set place/size of paging file. BUT è Microsoft recommends letting Windows manage paging file.

Ch 1174 Activity - Looking at Setting Up Your Paging File KEY CONCEPT: è Can specify virtual memory settings åFor best performance follow Windows suggestions è Only administrator can make changes

Ch 1175 Administrative Tools and System Information System Information: è Collects/displays system configuration information for local and remote computers

Ch 1176 Administrative Tools and System Information Microsoft Management Console (MMC) : è Tool used to create, save, and open collections of administrative tools

Ch 1177 Administrative Tools and System Information Figure 13.5 Administrative Tools p. 775

Ch 1178 Activity - Using Information and Computer Management KEY CONCEPTS: è System Summary è Tools that can be used åSystem Restore, Net Diagnostic, file Signature Verification Utility, Direct X, and Dr. Watson è Disk Management tool åGraphical tool for managing disks åDo online administrative tasks without shutting down system/interrupting users åProvides shortcut menus for tasks on selected object åMust be administrator to use äSupport for partitions and logical drives