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!

How To Make A Wireless FM Antenna For Any Mobile Phone

Today I'll tell you how to make a wireless FM antenna for any mobile phone which have 3.5mm earphone jack.

Step 1- Take any cheap 3.5mm earphone(which you could destroy!).

Step2- Cut the earphone wire from from top of the pin.

Step3- Take the pin and remove all plastic insulation attached to it.

Step4- Take a small length of copper wire(about 10-12cm long).

Step5- Attach one end of the copper wire to the top pin of the jack, if you want,you can solder it also. Now connect the jack to your phone and open FM radio,tune in to your favorite channel. Depending on the signal strength at your house,your phone should catch FM signal.

Step6- Your FM antenna is ready, you can attach other end of the wire to the pin above the flat pin,as shone in the figure below. That will make a loop.



Step7- If you want,you can cover the portion above flat pin with tape or thread for grip and for decoration,as I did.



You can watch my video tutorial for this, which I have uploaded to Youtube.

Here-

http://www.youtube.com/watch?v=Lm7V-JrDiwk

Or Here-




That's all! Enjoy FM on the go!

If you like my post,please follow me by the "Follow" option at the top right section of this blog. You can also follow me on Orkut,Twitter,Facebook,my id is Sujoy70.

Thanks for reading!

N.B- This tutorial is for education purpose only. I'm not liable for any damage occurred for trying this. I've made that and using that personally without any kind of problem,as you can see in my Youtube video.