The robots.txt file is used to instruct search engine robots about what pages on your website should be crawled and consequently indexed. Most websites have files and folders that are not relevant for search engines (like images or admin files) therefore creating a robots.txt file can actually improve your website indexation.




A robots.txt is a simple text file that can be created with Notepad. If you are using WordPress a sample robots.txt file would be:

User-agent: *
Disallow: /wp-
Disallow: /feed/
Disallow: /trackback/

“User-agent: *” means that all the search bots (from Google, Yahoo, MSN and so on) should use those instructions to crawl your website. Unless your website is complex you will not need to set different instructions for different spiders.
“Disallow: /wp-” will make sure that the search engines will not crawl the WordPress files. This line will exclude all files and foldes starting with “wp-” from the indexation, avoiding duplicated content and admin files.
If you are not using WordPress just substitute the Disallow lines with files or folders on your website that should not be crawled, for instance:

User-agent: *
Disallow: /images/
Disallow: /cgi-bin/
Disallow: /any other folder to be excluded/

After you created the robots.txt file just upload it to your root directory and you are done!

How to do this trick

It’s simple just while chatting with your friends enter

[[your friend's id]]

Now how to find your friend’s id

Visit your friend’s profile then you will see like this




Now in this case friends’s id will be 100003298748858 so you have to enter [[100003298748858]] in chat. Or else if you see like this.




then in this case you have to enter [[sumanacharya]] while chatting.
Now enjoy showing your friends profile picture as emotions in Facebook.

I am going to share a simple tip by which you can add a photo and your name to my computer properties.

First of all open notepad and type the following
[General]
Manufacturer=Your Name Here
[Support Information]
Line1=Your Name Here
Line2=Your Address Here
Line3=Your Email Address Here
Save as OEMINFO.INI in the C:\WINDOWS\system32 folder.

Then create a .bmp photo and save it the System32 folder as oemlogo.bmp
..........................The size of the image should be 180 x120 pixels.
Make a right click on my computer, Properties and you’ll see the changes.
It looks like this:

If your laptop or computer is often used by others, while a lot of important data in it, o f course you  do not want your data copied by them without permission
To make disable copy to USB external drive or flashdisk, one way is with  making change setting in regedit editor

The steps are :

• Press Win + R (to go to Run Command )
• Type Regedit, and then click OK (Will appear Windows Registry Editor )


In the Registry Editor window
• Double click  HKEY_LOCAL_MACHINE
• Double click  SYSTEM
• Double-click  CurrentControlSet
 



• Right-click on Control, => click New => click Key.   
Give the name : StorageDevicePolicies

• Right-click on StorageDevicePolicies (just created), => Click New => Choose  DWORD (32-bit) Value => give a name : WriteProtect

• Double click WriteProtect (just created), => Change the Value data from 0 to  1 => click OK



• Log off and logon again the computer to see the result, try copying file to flashdisk. copying will disallowed.

• To return to the Normal condition, change the Value data  to 0, or delete key and the Dword that we have created, by right click => click delete.