computer resourse management & trouble shootting_new

8/8/2019 Computer Resourse Management & Trouble Shootting_new

1/32

National Informatics Centre, DIT, Govt. of India1

Computer Resources

Management &

Troubleshooting


2/32


Agenda

Computer Resource Management1. Hardware Resources1. Plugging/Unplugging hardware device

2. Software Resources1. Adding/Removing Programs

2. Files Management3. System Settings

Troubleshooting tips

1. Quick Checklist2. PC Startup Troubleshooting Tips3. PC Software Troubleshooting Tips4. Hardware problems

5. Dos and Donts


3/32


Computer Resource ManagementHardware Resources

Plugging/Unplugging hardware device

1. New hard ware device like Mic,Speakers,pendrive etc can be plugged in the appropriate slots

2. Generally system automatically detects thedevice and install the respective driver, if it isnot installed otherwise installs it

3. Unplug the device only after proper shutdown.


4/32


Computer Resource ManagementSoftware Resources (1)

Adding and Removing Programs1. Click on Start>>Settings

2. Select Control Panel

3. Select Add/Remove Programs

Files managementIn windows files are managed through windows

explorer. Following are the general problemswith the files :

1. Cant find a file2. Cant modify a file

3. Not able to open/read


5/32


Computer Resource ManagementSoftware Resources (2)

System SettingsAll system level settings can be done through Control Panel.

Some of them are listed below

Date/Time

Adding New Printer Computer settings ( like name, putting it in the networketc)

If it is in the Network then assigning IP can be done


6/32


Problems with Files (1)

You cant find a File- Mistyped File name

- Incorrect Folder name in which file is being searched

- File accidentally / intentionally deleted( Check in Recycle Bin as probability of repetition of

same accident is very rare)

Youcanlocate a filebyname /lastupdate

date/ contentsusing find /searchoption


7/32


8/32


Problems with Files (3)

Not able to open/read a file- File may be password protected- It could be virus infected

- Already many copies of the same file

are kept open

- The supporting S/W is not being

used/installed to see the file contents


9/32


QuickCheck List

It does not start !

It suddenly hangs !


10/32


QuickCheck ListIt does not start

Ensure the PC is plugged in to a power supply andturned on

Look for any loose or damaged cables and cordsthat attach to your computer.

Make sure that all of your floppy drives areempty If on a network, check with other users of the

network in your vicinity to see if their PC's are

functioning normally. If all of the above seems to be fine, try turningoff the computer completely and restart it (coldbooting).


11/32


QuickCheck ListIt suddenly hangs

Power Cut off

Keyboard/Mouse disconnected or malfunctioning

Insufficient memoryDisk error

Visual display goes off

Abnormal shutdown of Computer


12/32


PCStartupTroubleshooting Tips

Error Messages

Viruses

Startup File Issues

Registry Problems


13/32


Viruses

A computer virus a small program thatattaches itself to another program ordocument and replicates with the potentialto cause damage.

What damages Virus can cause ?

How do Virus spread ?

How to protect your system ?

In case, virus is detected ?


14/32


Whatdamages virus can cause ?

Once a virus is run, it can impactmemory, affect performance,modify dataor delete files. Some viruses can wipe out

hard disks or make them inaccessible.Viruses also result in significant wastedresources dealing with the problem.


15/32


How do viruses spread?

By diskette, network, e-mail or Internetdownloads.

Occasionally, they are accidentally spread withinpackaged S/W.

Boot sector viruses spread when a userinadvertently boots his system from aninfected floppy disk

Macro viruses can spread by simply opening an

infected document.

Viruses cannot spreadon their own and must be run (orexecuted) by someone to cause damage .


16/32


How toprotectyour system?

Do not use virus infected floppies.

Write protect your floppies, whenbeing read only.

Use original copy of the S/Wprocured from reliable sources.

Do not loan your program disk.

Do not let anyone use your systemwith external floppies.


17/32


In case, Virus is detected

Start the system in standalone (Safe) mode.Run anti virus program and try to

retrievethe data (if required, takeprofessional help) If virus persists, format the hard disk.

(Remember to take backup before

formatting)Reload system S/W from original source andcopy your data and programs from backupfloppies.


18/32


PCSoftware Troubleshooting Tips

Software Doesn't Work Your program wont load* Mistyped or incorrect command* Conflict with other programs* Insufficient system requirements

(i.e., not enough memory) Program crashes

- Low memory

- Conflict with other programs

- Software bug- Improper installation of the S/W- Virus infected S/W

Note: We may get the message of illegal operation


19/32


HardwareProblems

Boot problem Problem with power supply or CPU chips Video card problem Keyboard Error RAM error

Hardware Doesn't Work Device Isn't Recognized IRQ Conflicts

Problems after booting PC Freezes PC restarts while in use

Problems related with common ComputerHardware


20/32


PCFreezes

Check CPU fan, case fan and power box fan,make sure all are working and clean off dust.Check hard drive, CPU, power supply for overheating. Some video cards may also heat up and

create excessive heat inside the case. Makesure that the case is kept cool, by maintaininggood air flow.

Scan hard drive for bad sectors.

Make sure all devices are functioning properlyare plugged in. Unplug any faulty device.

Unplug any new devices or software installed.


21/32


PCrestarts while inuse

One problem could be bad RAM, replaceRAM and restart machine. Open upresource hungry applications like Office,

Photoshop, many instances of internetexplorer until all the ram is used up. Ifsystem doesn't freeze or restart .

Check capacitors on motherboard makesure that they aren't bulging, leaking, orburned. If they are - that's the problem.

Scan for viruses.


22/32


Problems related withCommonComputerHardware

Monitor Keyboard

Mouse

Printer Audio I/O Devices

Harddisk

Compact Disk


23/32



Monitor

No Power Supply or improper connection

Monitor controls & settings may be

disturbed Incorrect Video Card Setup

Incorrect Video driver loaded

Bad Video Card or Monitor


24/32



Keyboard

Keyboard connection loose ordisconnected

Caps Lock or Num Lock keysturned on accidentally

Keyboard malfunctioning


25/32



Mouse

Improper Connection

No mouse driver loaded Wrong or incorrect mouse driver loaded

Mouse driver conflict with another device

Mouse Pad or table surface may not beeven

Dust/dirt on Track Ball


26/32



Printer

No Power Supply or improper connection

Paper miss-fed or jammed

Incorrect S/W setup Incorrect fonts installed

Hardware Problem

Dont remove paper with force. Dont useinferior quality paper/ toner/ ink /ribbon


27/32


Check that the Devices cord is pluggedin the proper slot.

hardware conflict should not existbetween your audio card and anotherdevice in your system.

For Audio output (speakers) check theMicrosoft Volume Control or the Audio

Mixer Program mute options and volumesliders.


AudioI/O Devices


28/32



Harddisk

Check for Bad sectors

If the system is not coming up then it can be

startd from bootable media (CD/Floppy disk),

then is can be checked

De-fragmentation

Cleaning of Harddisk by removing

temporary/unwanted files, to increase the

space


29/32



CompactDisk

Check if the CD is bad, by putting it in

another computer

If the disk can be read from anothercomputer, the disk drive may be bad and

need replacement by a technician.


30/32


Dos and Donts (1)

Topic Dos DontsSystemStarting /Closing

Putting ON system

Input Power supply source

CPU< Monitor, Printer,Modem etc

Shutdown the systemProperly.

Dont put in or pull out any cablewhen the system is ON.

Don't put other CD/Floppieswhen the system is booting.

Dont allow unauthorized peopleto use your computer facilities.

Protectionfrom Virus

Run latest version ofAntivirus program in thesystem.

Write protect your floppies,

when being read only.

Don't use virus infected floppies/CD.

Don't use pirated or unauthorisedS/W.

Dont execute all the filesattached to emails (.exe files)

Email Check for new mailsfrequently.Be prompt inacknowledging &sending thereply.Be Short & specific inwriting messages.

Do not sent big files asattachments without priorconsent of recipient.Dont writeendless essays. Avoid Junk mails.


31/32


Dos and Donts (2)

Topic Dos DontsFile Management Give appropriate file name &

store in appropriate folders.

Assign passwords to confidentialfiles.

Delete Unwanted files

Avoid keeping of same fileunless it is essentially required.

File sharing overLAN

Use proper password for thesystem, and should not be sharedwith anyone to preventunauthorised person.

Keep system locked, through

password even if you are goingout for a short time.

Password at folder level forsharing the files over networkshould be given unless they are tobe made available to all.

Dont give share permission onthe Network, whenever requiredit may given but for a limitedtime only.

Dont give update rights to

other users.Dont delete files which are ownby some other users in theNetwork.


32/32


ThankYou.

For further information and suggestions please contact

Training DivisionNational Informatics Centre

A-block, CGO Complex

Lodhi Road, New Delhi-110003

E-mail:[email protected]

Website: http://training.nic.in

computer resourse management & trouble shootting_new

Documents