If you have the strong virus, your pc can not detect/open /format the storage device (pen drive/sd memory etc),because there is another auto run program is running along with the devicefile.
Follow step>Go another PC which is running well, If allthe hidden file and protected system file can see in that PC think that is wellin condition. But please don't connect the usb pen drive.Now you should stopthe autorun .Follow all the instructionm, how to stop autorun.
How will you confirm?
Follow the steep.
Press win key +R >type gpedit .msc and soon an windowswill open.
Press win key +R>ms config and soon an windows will open.
Press win key + R REGEDIT and an windows will open soon.
Go to tools option >folder option >view>check onshow hidden file
Check off hide protected operating system file
Check off hide extension known type file.
If , still there are no hidden file in drive C:
Think your computer has affected by serious virus, becauseto protect the systemfile
microsoft manege all sys file as hidden.
When you can see all hidden file through that proceses,think pc is not infected by serious virus.
If your another PC is well, after examine all the steep, doall the steep now.
Go start>program>accessories>system tools>system restore >set earlier date. If you have the strong virus you cannot do that,
Or restart the computer and pres F8 frequently ,soon afteran windows will appear,follow the link.
If the problem is same
Do next step
If you want remove manually
You want to save your data download
Write cd with the ISO file through IMAGE BURN option fromany nero ,and restart pc with thebootable cd ,It will start soon, or follow the link for boot from cd
Go to BIOS SETUP and go mini windows and delete systemvolume information and RECYCLER from all drive except "C"
drive. C: drive is your Heart Of Castle because.If can not remove please download bootable f cecure with the followinglink.
Write the ISO from image burning option from any neroburner, and boot from CD at the start time.
Now you will install and just delete C drive and create
Then you must copynecessery file to anothe drive .
follow step>set your hard disk in another computer.before install be ensure that .another pc is well condition.
>show hidden folder can see all system file >can opentask manager>run type ms config >enter, it will be open windows>runtype gpedit.msc> enter ,it will be show.>run type regedit enter ,it willbe open .think your another pc run in ok condition. Then type gpedit.msc andhit >administrative templates>system>turn off auto play>selectenable>click down arrow >select all drives.
Now auto run program off. you can see and delete easily allthe hidden unnecessary file .auto run file. From hare you can insert the pendrive and delete unnecessary file or format.Now you can format or open your pendrive.
If can not do all ,should delete serious malware and spyware.Hope it will help you