How To Recover Disappeared/Hidden Files & Folders From Pen-Drives,Hard-Disks Due To Virus

Hello My Dear Friends,

I'm Sujoy, and today I'll tell you how to recover your files/folders from pen-drives(flash drives),hard disks,memory cards which got disappeared/hidden due to virus or some other reasons. Remember,this trick can't recover files/folders which disappeared due to file system errors or disk crashes.

Yesterday,my friend brought his 2TB Seagate external hard disk to me,complaining that some of his folders are not showing in windows explorer,but total used space hasn't decreased.

Then I opened my favorite Command Prompt and fixed the problem! How? Explained below-

1. For Windows Vista,Windows 7 and Windows 8 users,connect the pen-drive or hard-disk to your pc and double click to open it,as usual; or right click on the drive from My Computer,then select explore.

Then press & hold the SHIFT key and right click on any blank area & select "Open command window here", a command prompt window will open.

For Windows XP users,press & hold Windows key,then press R key, ie, Windows+R. Type cmd and press enter,command prompt will open. Then type device's drive letter followed by a colon. 

Example- H:    ,as my pen-drive is now H drive.

2. Then type this command attrib -s -h -r  and press the TAB key. Each time you press the TAB key,a new folder name will appear beside the attrib -s -h -r command. When you see your desired folder name,which got hidden,press enter key,the selected folder will be visible & will appear in the explorer window. If not,just refresh the drive window,by F5.

For example,a folder named "project" got hidden on my 4GB pen-drive. You can see in the screenshot,no folder is visible on pen-drive,but used space is 439MB.

Then I'll open command prompt and type attrib -s -h -r   and press TAB. I'll see folder named Project appeared on screen beside attrib -s -h -r. I'll now press ENTER. And magic!! The folder project will appear on pen-drive! Now I can double click it and see the contents!!

One tip- Fully scan your pc with a good and most importantly,UPDATED Anti-Virus after that,so that such problem doesn't appear again.

So,this was for now,next time I'll come with a more exciting & useful tutorial for you. How was this tutorial,let me know!

One Announcement!!

=============================

 I've uploaded videos on Scientific Calculator Tutorials,math tutorials,electronics DIY projects,technology how-to videos,travel videos on my youtube channel-

  http://www.youtube.com/sujoyn70

I upload 2 videos every month there. I upload technical,non-technical videos there. Please visit that too,and 'SUBSCRIBE' my channel to get updates about my latest video uploads!

How To Install & Configure Java JDK On Your Computer?

How to enable your computer for java programming?

First,download Java Development Kit(JDK) form one of the following addresses-

http://www.oracle.com/technetwork/java/javase/downloads/index.html

http://download.cnet.com/Java-Development-Kit-32-bit/3000-2218_4-12091.html

http://download.cnet.com/Java-Development-Kit-64-Bit/3000-2218_4-75317068.html

http://java-development-kit-jdk.en.softonic.com/

Double click the downloaded file(in our example,it should be named as  jdk-7u6-windows-i586.exe) and follow the installation process,there will be two installations,one for the JDK, another is JRE(Java Runtime Environment).

After the installation,go to Command Prompt by pressing Windows Key+R. Type java -version and hit enter,it'll show interpreter's version. Then type javac -version and hit enter. If the javac command completed successfully then you don't have to follow the steps below. But,if you get an error like this-  'javac' is not recognized as an internal or external command,operable program or batch file ,then do the following-

Go to Start -> Control Panel -> System -> Advanced System Settings -> Environment Variables, select the system varable named "Path" and click the Edit button. Add the address of java's bin sub-directory at the end of the list in the Variable Value field(in our example C:\Program Files\Java\jdk1.7.0_06\bin) then click the ok button.

To test the environment open command prompt by pressing Windows Key+R.

Type java -version and hit enter to see interpreter's version number.

And type javac -version and hit enter to see compiler's version number.

Both the versions should match. If it matches,you're ready to do java programming!

Note: Other than java programming,if you install the jdk,you'll be able to run java-archives(i.e .jar files) on your computer! There are plenty of java applets(small applications) are available on the internet for free! Also java is needed for surfing various internet sites.

That's all!

If you like my article,please join my blog by "Join This Blog" option at the top right section of this blog.

And most importantly,don't forget to visit my youtube channel at-

http://www.youtube.com/sujoyn70

I've uploaded many videos about calculator tricks,math and engineering tutorials,electronics DIY projects,technology how-to videos,funny animal videos,travel videos etc in my youtube channel.

Thanks for reading!

Windows 7 Not Detecting External Hard Disk_Solved!

Hi friends,

Last week,I brought my friend's Seagate 2TB external hard disk to backup some files on my computer. That hard disk runs on 9v ac adaptor,connect the adaptor to ac 220v supply,and connect usb port to pc and work. I connected the adaptor to mains,and usb to my Acer Aspire One h532 netbook,led light on harkdisk glew,my windows 7 given regular "ping" sound confirming that it has detected the harddisk,but the device is not showing on My Computer! I waited for few minutes,tried refreshing my computer,still no signs of harddisk! I connected the harddisk to another desktop computers having Windows7 and Windows XP,it worked for both. I again tried connecting the harddisk to other two usb ports on my netbook,didn't help! Then I ran my genius brain ;-) and solved the problem! Here's how-

Right click on "computer" (previously called my computer),choose "manage", choose "device manager",expand "universal serial bus controller",select your problematic device(in my case,it was named 'external'),right click on it,and select "uninstall". After the uniinstallation process,.disconnect the device from your computer and restart your computer. Now after restart,reconnect your device,this time windows should detect your device and and automatically reinstall required drivers for it,you can see the progress in taskbar.

If this trick does not work,and you're confirmed that the device is ok,you can perform a "system restore" from "start menu",type 'restore',and choose "system restore",and follow the on screen instructions,in Windows7.


I've uploaded many more videos about calculator tricks,math tutorials,electronics DIY projects,technology how-to videos,funny animal videos,travel videos. My one video about casio calculator has got record number of views! Please visit my Youtube channel- http://www.youtube.com/sujoyn70 to see them. Don't forget to subscribe! By that you'll be notified by email whenever I upload a new video!

Thanks for reading!

Top 5 Most Watched Videos From My Youtube Channel

Hi friends,today I'll share with you top 5 most watched videos from my Youtube channel. In my channel,I regularly upload videos related to technology,how-to,DIY, and tutorials on scientific calculators. My video on Casio fx-991ES programmable scientific calculator has got record number of views! These calculator tricks are a must watch for anybody doing engineering,BSc,MSc,PHd or just schooling,or preparing for competitive exams. I've also have separate category of videos for electronics projects and technology how-to, like- "make a simple musical doorbell", "how to add your photo+lyrics to any mp3 song without any extra software". Very soon I'll upload engineering study related videos. I'm linking the videos below,watch them. If you like them,please hit like on Youtube,and don't forget to subscribe to my youtube channel- www.youtube.com/sujoyn70

By subscribing,you'll get notified whenever I upload a new video.

Thanks for reading!

My Collection Of Very Very Useful Websites!

Hi There!

Today I'll share with you my personal collection of useful websites. Hope, it'll be useful to you too! I've categorized them in distinct categories for convenience,also provided brief notes with them! If you like this post,please share it,it may also be helpful to someone else. Knowledge is meant to be shared!

1. Exam/Competition/Board/University Results-
www.webscte.org = West-Bengal State Polytechnic Result/Website

www.webscte.in = West-Bengal State Online Polytechnic Counselling
www.wbut.net = West Bengal Engineering Colleges Result
www.wbresults.nic.in = West Bengal 10th,12th,Graduation Results
www.banglarmukh.com = All results at one place

www.cbseresults.nic.in = Kendriya Vidyalaya(CBSE) results

www.caresults.nic.in = PCT Commerce Results
www.exametc.com = Another good site

www.ssc.nic.in = Staff Selection Commission(SSC) Result
www.sscer.org = SSc Eastern Zonal Results

www.vbu.co.in = BSK College Result
www.jharresults.nic.in = Jharkhand Secondary and Higher Secondary Results
www.ptu.in = Punjab Technical University Results
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2. How To / DIY-
Here You'll get all how to do articles,how things works,art and craft,science projects,decorations ideas.

www.fixitclub.com = Fixing household things(like fixing a hair dryer)
www.wikihow.com
www.wonderhowto.com = Good knowledge site
www.ehow.com
www.simplehelp.com
www.instructables.com = How to do it yourself!
www.howcast.com
www.newkerala.com = All kind of knowledge
 www.makeuseof.com = Best site
www.home-remedies-guide.com = Home remedies to ailments
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3. Study-
Students Heaven! In this section,you'll get all study materials,Q&A,solutions,coaching,guidance,tutorials and knowledge!

http://www.indiastudychannel.com/forum/33473-Pls-give-some-useful-websites.aspx

www.encyclopedia.com

www.allaboutcircuit.com = Electronics Database

www.easycalculation.com = All kind of online calculators,#1

www.engineeringtoolbox.com = An engineer's best friend!

www.8085projects.info = Everythiing you want to know about Intel 8085,8086

www.Indiastudychannel.com

www.educationcareer.in = An Indian's Edu Guide!

www.alltransistors.com = Database of all Transistors

www.buzzle.com = Online Knowledge Bank

http://tutorial.math.lamar.edu = Math,Calculas,Trigonometry

www.mathisfun.com = A simplified math explainations

www.mathwords.com = Math site

www.sosmath.com

www.studyguideindia.com

www.123eng.com = All engineering studies solution

www.shabdkosh.com = Online Hindi Dictionary

www.macs.hw.ac.uk = Computer and Maths Guide

www.allfreeessays.com
www.oppapers.com = All kind of free english essays
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 4. Information Sites-
Here you'll get all informative sites.

www.india9.com = Information about India
www.dvcindia.org = DVC Official site
www.medindia.net = Doctor's database
www.indiarailinfo.com = Total Train Timings
www.indiapress.org/index.php = All India Online Newspaper
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5. C/C++ Programming-
Programmers zone! Get solutions to all your C programming related problems,source codes,ready to run programs etc.

http://analysingc.50webs.com/index.html

www.cquestionbank.blogspot.com

www.easycplusplus.com

http://c.happycodings.com

www.brighthub.com/computing

www.cprogramming.com/tutorial/c/lesson1.html

www.sourcecodesworld.com

www.technoexam.in = Good site
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6. Computer Hardware Networking-Get set go to learn Hardware and networking!

www.buildeasypc.com/index.htm

www.desktop-computer-guide.net
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7. Recipes/Cooking-Food lovers zone! Get latest and hottest cooking dishes!

www.awesomecuisine.com
www.indianfoodforever.com
www.recipescookingtips.blogspot.com
www.mysamayal.blogspot.com
www.newkerala.com/recipes


That's all!

If you like my post,please follow me by the "Join This Blog" option at the top right section of this blog. Thus you'll be notified when I post something new to this blog! Also that will encourage me to post more articles! And visit my Youtube Channel- www.youtube.com/sujoyn70 for more informative videos!


Thanks for reading!

July Player- Best Video Player For Nokia Touch Screen Phones

Hi friends!

Today I'll review the app JULY PLAYER ,best ever video player for Nokia touch screen phones(S60v5). Well,for about last two years,I've been using Smartmovie Player. But the bigest problem with smartmovie is,sometimes it automatically crashes while playing a video. Then again uninstalling,reinstalling,crack search on internet,lots of headaches!

Then I found the July Player,and using it for over 8 months! It has some very good features-

• It plays anything- It can play 640x360 or 640x480 mp4 videos with avc10 video codec. That means it can play the mp4 videos which default Real Player on S60v5 cannot play! Though performance isn't that good while playing high-res videos,but at least I can play it!

• It Never Hangs- Since I'm using it,it has never crashed or hanged! If it were Smartmovie,it would have crashed once per week!

• Built-In Live Radio,Live Tv- It has got built in online radio,where you can listen to channels all over the world,built in Live Tv app to enjoy Live Tv. No need to install any other software.

• File Manager- You can select which file to play,from memory card,great if you have some secret files in folders other than Vidoes folder!

• A Visual Gallery- If you like gallery view,then go to Video icon,here all your videos are placed in thumbnail view! Simply spot and play!

I think JULY PLAYER is the best video player for S60v5 phones,what do you think? Which app do you use? Lemme know! Download July Player from the given link- http://gvs-mobile-downloads.blogspot.in/2011/04/download-july-player-for-symbian-s60v5.html


Ok,this was for today,if If you like my post,please follow this blog using the Follow This Blog option at the right hand side of this blog,by that you can stay updated by the latest updates on this blog.

N.B- Please watch my YOUTUBE CHANNEL, www.youtube.com/sujoyn70
to get more infotainment videos! You're surely gonna love that!

Thanks For Reading!

How To Know Your Own Mobile Number on Airtel,Docomo and Smart?

Hi There!

Today I'll tell you how to know your mobile number even if you don't have balance in your phone.

Airtel Users- Dial *282# or *121*9# and press call.

Docomo users- Dial *580# and press call.

Smart(Reliance GSM) users- Dial *1# and press call.

Right now,I know codes for these operators only,if I know more,I'll share with you later.

If you know working codes for other operators,let me know in the comments section below!

That's all!

If you like my post,follow me by the "follow" option at the top right corner of this blog. You can also follow me on twitter,my id is Sujoy70, or on facebook; www.facebook.com/sujoy70 .

N.B- Please watch my YOUTUBE CHANNEL, www.youtube.com/sujoyn70
to get more infotainment videos! You're surely gonna love that!

Thanks For Reading!