Computer repair and maintenance involves hardware and software repair. Common hardware issues include RAM failure, power problems, hard disk failure, processor failure, motherboard failure, and VGA failure. Cloning a system involves purchasing computer parts like a casing, motherboard, power supply, hard drive, and assembling them to make a complete computer. Formatting a disk and reinstalling Windows 7 involves entering the BIOS, booting from the Windows 7 DVD, selecting installation options, creating a user account, and setting up the network connection. BIOS is software that controls basic computer hardware functions and is stored on the motherboard chip.

1. Computer repair and
maintenance is divided into two
sections:
1. Hardware repair
2. Software repair

2. The following are some common hardware
problems:
1. Ram Failure: beep sound, system won’t boot to
screen.
2. Power problem: check power cable or power
unit. They are replaceable.
3. Hard disk Failure: computer gives error
message; primary master not found, check
media cable.
4. Processors Failure: computer will not boot to
desktop not usual common.
5. Mother Boards Failure: Computer will not power
6. VGA failure: System will turn on but no display
Buy new VGA card.

3. Cloning a
To scloynes at seysmtem means, buying parts of
computer and assembling them to make a
complete computer.
Major parts to be purchased:
 Casing
 Mother board SATA or IDE with
microprocessor
 Power unit
 Power cable
 Hard disk drive
 CD Rom
 RAM
 Monitor

4. Software Repair and
Maintenance
Steps to formatting a disk and
reloading a new windows 7:

5.  The basic steps for installing Windows 7 and
is aimed at beginners and above. You should
check the disk does not contain valuable data
before formatting or installing. Recommend to
backup any data if of importance.
 Steps
 Turn your computer on then press Del, F10 or
F2 (depend on your computer’s mainboard) to
enter the system BIOS
 Some systems will give a message like (F10
Setup or settings), this means press F10 on
your keyboard to enter settings.

6. BIOS
BIOS, an acronym for Basic
Input Output System, is
software that controls basic
computer hardware functions.
BIOS is stored on a
motherboard chip.

7. BIOS, an acronym for Basic Input Output
System, is software that controls basic
computer hardware functions. BIOS is stored
on a motherboard chip.

8. Go to Boot menu and choose Boot From
CD/DVD.

9. Press F10 to save the configuration
and exit BIOS then reset your
computer.

10. Insert Windows 7 DVD into your DVD
drive then start up your computer,
Windows 7 will be loading files.

11. Select these parts: Language to
Install,Time and currency format, Keyboard
or input method. Then click Next.

12. Choose Install Now if you want to install Windows 7.
Choose the Windows 7 version that you want to
install in 'Select the operating system you want to
install' . Here we choose Windows 7 Ultimate then
click next (depending on your Windows DVD, this
step is an option).

13. Click 'I accept the license terms' in
'Please read the license' then click
Next.

14. Choose 'Upgrade' in 'Which type of installation
do you want' if you want to upgrade from an
older Windows version to Windows 7, 'Custom
(advance)' if you want to install a new version
of Windows.

15. Choose Partition for installation, if your
computer has only one hard disk, it will be
easy for selection, but if it has some Partition,
you will have to consider which Partition to
choose.

16. Wait for Installing Windows to progress.
Your computer might be restarted during the
process.

17. Type you’re a user account and
computer name. After click Next.

18. Type a password for your account, you
can also Type a password hint to help in
case of forgetting the password in the
future, and then click Next.

19. Type in activation code or key for
your license in Product key box if
you have any. Click Next.

20. Choose how to protect your
Windows. Here we choose Use
recommended settings.

21. Set up your Time zone then click
Next.

22. Choose an option from 3 choices: Public
Network, Work Network, Home Network.
Choose Home Network for using Internet at
home.

23. Method 1 of 2: Hardware
requirements
 This is minimum hardware that you need
to have on your computer and should be
checked in advance of installing.
1 GHz CPU with 32 bits or 64 bits.
1 GB Ram for 32 bits or 2 GB Ram for 64
bits.
16 GB empty space hard disk for 32 bits or
20 GB for 64 bits.
DVD drive (if installing from a DVD).

24. Method 2 of 2: Some errors
during Windows 7 installation
 After Windows 7 installation, if you cannot connect
to Internet, please check these troubleshooting:
 Make sure Internet cable and the modem are
working properly, the connection points are not
getting loose.
 Check the network drive (normally Windows 7
automatically detects drivers).
 Set up Windows IP if the modem doesn’t analyze it
automatically (searching on Internet for how to set
it up)
 Some devices might not work such as: USB 3.0,
Webcam, Bluetooth etc. then you should check the
driver ok to see if it has been installed properly.