I always see autorun in my flash drive & it cant be deleted. Is it a threat?

No it isn't. it just a file that tells the computer what to do once the device is inserted. without it windows wont be able to ask you if you want to play the music files with media player or open the drive with explorer and stuff like that. theres no need to worry about it.

Guy autorun s two type. 1 is autorun.inf
2. Is autorun.
1.autorun.inf s a virus dat eat d space of ur drive & s harmful. So if u contact d virus, dn't worry,jus download autorum m.killer & it will wipe it 4rm ur drive.
2.Autorun. S nt a virus rather it detect what choice 2 click when u insert a flash drive or cd into d cd rom dat has image,open folder,play music etc.

felix55:

Guy autorun s two type. 1 is autorun.inf
2. Is autorun.
1.autorun.inf s a virus dat eat d space of your drive & s harmful. So if u contact d virus, dn't worry,jus download autorum m.killer & it will wipe it 4rm your drive.
2.Autorun. S nt a virus rather it detect what choice 2 click when u insert a flash drive or cd into d cd rom dat has image,open folder,play music etc.

dude you're right its autorun.inf, and its in your computer, check this process

your pc is the host while the usb device is the carrier, so your computer re-infects even if you think its clean, visit the forum best antivirus to use to see utilities that could help you

autorun.inf is a file that provides instructions to windows o the action to take with the inserted media. typically, its an instruction to run a file on a the flash drive/dvd

most of the time, autorun.inf files are installed by malware

this is especially the case if they can't be deleted, because they are tied to a process they have started

malware can overwrite harmless autorun.inf fils on flash drives

all my removable media(flash an external drives) has autorun.inf files i put in them to provide them with icons rather than the drab windows hard drive indicators

@op, you have a problem - no question about it

try malwarebytes antimalware

actually autorun,inf is not a virus
ok let me try to explain but it might take a while:
when you insert your removable device and some program starts running automatically it as a result of autorun,inf; when a pc has autorun enabled (which windows has by default), everytime a removable device is inserted the system looks for the autorun.inf file that contains some instruction that should be run automatically. Even in your cds like your windows installation cd there is an autorun.inf there, that is why you pop in your cd and the installer starts running automatically without you even clicking on the icon
now there are some malware that spread by putting an entry in autorun.inf and copying to writable removable media - particularly flash drives, so that once the flash drive is inserted into a pc with autorun enabled the pc automatically runs the file and the instruction in the file get executed
so if autorun.inf keeps getting copied odds that your pc is infected but the problem is not the autorun, rather it's some program already running that keeps writing the file to the flash drive; advice: get a good and up to date antivirus and scan your pc