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you can schedule Preventive Maintenance application to run at specific times. You can schedule tasks using GUI based Windows Based Task Scheduler or the CRL at Command. Both tools allow you to run a command at a specific time, or run on an ongoing basis on selected days or times. For recurring tasks, Windows Task Scheduler is easy to learn and use at command.

Windows Tasks Schedule
Task schedule monitor selected user defined criteria and then executes tasks when criteria has been met. there are common tasks are automated using Task Scheduler:

Disk Clean-up
Backup
Disk defragmenter
restore point
starting other application

to access Windows task scheduler:

Control Panel >Administrative Tools > Task Scheduler

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The Windows 8 Apps environment is highly customizable:

To re-arrange the tiles, click and drag the tiles.

To rename a tile group, right-click on any empty area of the screen and select Name groups.

To add tiles to the main screen, right-click the desired Windows app after searching for it and select Pin to Start.

To search for an app, click Search from the Charms bar. Alternatively, you can start typing the name of the app from the Windows Apps environment. Search will start automatically.

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Device Driver Updates
Manufactures release New drivers address issues with current drivers. chech for updated drivers when your hardware doesn't work or to prevent future problems. Update drivers patch or correct security problems. If update doesn't work properly use Roll Back Driver feature to revert back to previous install driver.

Operating System Updates
Microsoft release update address security issues and other problems. You can download update manually with automatically with Windows automatic update utility. Downloads contain multiple updates called service pack brings OS up to date quickly. set up a restore point and back up critical data prior to installing a service pack. add OS updates to your preventive maintenance program ensure OS has latest functionality and security fixes.

Firmware Updates
less common than drivers. Firmware address issues not fixed with driver updates. Firmware increase speed of certain types of hardware, enable new features or increase stability of a product follow instructions when performing firmware updates to avoid making hardware unusable. research updates as it's not possible to revert back to original firmware

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Shake
Peek
Snap
You can also add gadgets as well. To do this you must complete 3 steps:
Step 1. Right-click anywhere on the desktop and choose Gadgets.

Step 2. Drag and drop the gadget from the menu to the desktop, or double-click the gadget to add it to the desktop, or right-click the gadget and choose Add.

Step 3. To snap a gadget, drag it to the desired desktop location. The gadget aligns itself with the screen edges and other gadgets.

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Windows 8 has the following hardware requirements:

1 GHz 32-bit or 64-bit processor

1 GB of RAM (32-bit) or 2GB of RAM (64-bit)

DirectX 9 supportive graphic card

Hard Disk space: 16GB (32-bit) or 20GB (64-bit)

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Preventive Maintenance Provides benefits including:
Decreased Downtime
Improved Performance
Improved Reliability
Decreased Repair Cost

Prioritize equipment that affects the organization if the equipment fails. Preventive maintenance include automating tasks to perform schedules updates.
It should include installing services that will keep the system up to date compatible with software.

Preventive maintenance includes these tasks:
Hard drive error Checking
Hard Drive defragment
Hard drive Backup
Update OS and Application
Update antivirus and other protective software.

record all records,  repair logs determine what equipment is reliable, Provides history of when computer was last fixed and the problem

takes place when causing least disruption to the user,  there are tools that allow automation preventive maintenance tasks

security
install antivirus and malware protection. perform scans on computer ensure that remain free of malicious software. If infection is found Windows Malicious Software  removes it.

start-up Programs
anti-virus scanners and spyware removal tools don't automatically start with boot up. to ensure boot up add the program to the startup folder of the start menu. many programs have switches perform specific actions such as starting without the display

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The Task Manager allows you to view all applications that are running and to close any application. Can be accessed by pressing CTRL-ALT-DEL and select Start Task Manager.  You can also open the Task Manager by right-clicking the taskbar and selecting

Processes -
This tab shows a list of processes currently running on the computer.
Performance -
This tab contains system performance graphs
App HIstory -
This tab contains historical information, such as CPU time and network bandwidth.
Startup -
This tab shows what processes will be automatically started during Windows startup
Users -
This tab shows how much of the system resources each user is consuming.
Details -
This tab allows you to tweak the level of CPU priority for a given process.
Services -
This tab displays all services currently running on the system and allows for stopping, starting, and restarting them.

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Be careful when ending a process or changing the priority of processes in the task manager. Ending a process causes the program to end immediately without saving any information.

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-a virtual machine is a computer that exists within a computer.
-operate multiple operating systems at the same time, from the same piece of hardware.
-VM uses host machine to boot and run an OS.
-host and guest OS do not need to be of the same family.