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Showing posts with label calculator. Show all posts
Showing posts with label calculator. Show all posts

Saturday, September 14, 2013

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


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!

Wednesday, December 12, 2012

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!