Tech

Maintaining Operating Systems–NETWORKING ESSENTIALS—CompTIA A+ (220-1001) A-PLUS Certification Prep Course Notes

Maintaining Operating Systems

  • Patch Management
    • Windows 7 Update gives the user the ability to choose which updates to install and when.
    • Windows 10 Update locks down the update system more, the only option is to pause the update and choose active hours.
    • Patch management in Ubuntu Linux offers more options for updating.
    • Updating with macOS is pretty much automated, like Windows 10.
  • Working With Discs
    • Error checking runs ‘chkdsk’ on a disk partition to check for bad sectors.
    • Trimming allows data to be written in individual pages termed “available for use”
    • Optimizing trims blocks in disks to allow for new data to be written in partially full blocks.
  • Working With Applications
    • An application saving into Program Files (x86) indicates a 32-bit program.
    • An application saving into Program Files indicates a 64-bit program.
    • In Windows, you can uninstall applications using the ‘Programs & Features’ tool.
  • System Restore
    • System Restore focuses on applications, the Registry, & critical system files.
    • Creating too many System Restore points, without noting the OS changes you made in between, can become confusing.
    • Windows can restore from a System Restore point even in Windows Recovery Environment.
  • Backing Up Your Files
    • Windows Backup & Restore (Windows 7) enables users to back up selected folders as well as create system images and system repair disks.
    • A system image is a copy of your system at the time of backup.
    • A system repair disk is a bootable disc to repair a Windows system.
    • Backup tools require external backup sources such as external hard drives or network locations.
    • Windows also has File History –> Automated Backups, and Macs have ‘Time Machine’
  • Task Scheduler
    • Task scheduler enables users to schedule repetitious tasks
    • Many tasks are prescheduled by Windows.
    • Creating your own tasks is easy with Task Scheduler.