USB stands for Universal Serial Bus and is a general and universal interface standard for connecting computers and electronic devices.

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How to measure actual USB3 port speed?

Not all USB3 ports are created equal. I have a friend who develops embedded hardware that interfaces with USB chipsets. He told me that most USB chipsets that are slightly faster than USB2 (480 ...
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2answers
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Booting an Asus EeePC from a LiveCD USB stick

I have two identical Asus EeePC netbooks that are both installed with Ubuntu. One of them was sitting on the closet shelf and the battery went completely dead. When I charged the battery and tried to ...
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How do I burn an .img file onto a USB drive? [closed]

I'm using Windows and trying to burn this Chromium OS nightly onto my USB drive. Could someone recommend a program (freeware) that can "burn" an .img file onto a USB drive?
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Fake USB connectivity for a virtual machine?

I am trying to install the network software for a HP printer inside a virtual machine that's running Windows XP Professional that has no USB connectivity - it doesn't even have USB drivers present. ...
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1answer
65 views

Does the BadUSB issue also affect SD cards?

Since I've heard about the BadUSB issue where the firmware of a USB stick can be maliciously changed, I was thinking about ways to avoid this issue. Would using SD cards as an alternative to USB ...
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2answers
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Why does Windows 7 mouse freeze after resuming from sleep?

A similar question previously posted at Super User is Why Does My Windows 7 PC Freeze After Waking from Sleep?, but none of the previous answers intially appeared to solve my problem or were the same ...
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3answers
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SSD Perfomance - Internal vs External?

I got a SSD for Christmas and it came with the option to have it installed internally or externally. I'm wondering if I have it setup as an external hard drive, will there be any major performance ...
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Is there any way to prevent a USB flash drive from being written to? [duplicate]

I see lots of articles about preventing a specific computer from writing to a USB flash drive or preventing malware from getting from a USB flash drive to a computer; what I can’t find anything for is ...
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Why are USB ports oriented differently on different devices?

For example on one machine the ports have the empty side on the left and on another it's on the right. Why don't manufacturers make this consistent?
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How to “restart/repair” an USB port?

My laptop has two USB ports, but one is broken, so I use a USB hub in the other good USB port. In that USB hub, I use a mouse and keyboard. Suddenly, that USB port doesn't detect the mouse and the ...
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6answers
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Windows OS on external hard drive

Is it possible to install Windows OS to plug and play storage device such as external hard drives, HDD enclosures (with SATA hard drives), USB flashdrives[1] and the likes? What OS's? And if it's ...
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5answers
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Are there any USB flash drives or SD cards which use RAID or redundant storage for additional reliability?

I'm looking to get a fault-tolerant USB flash drive, which saves data to multiple independent locations, whether using RAID or some other means to back up data. Has a product like this ever been ...
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4answers
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How do I print to a USB drive?

I don't own a printer. I want to print on-line documents such as coupons and airline tickets to a USB drive which I will then take to the Staples store for printing. I want to keep the bar codes ...
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8answers
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Force Vista to “forget” a USB device

I have a device (HTC Dream / G1 Android phone) that I want to set up with a specific driver. Unfortunately I have already previously installed the device with the default driver. Even after ...
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4answers
19k views

Is there a distinct advantage that a PS2 port has over a serial/USB port?

Silly question perhaps ... I'm told that PS2 technology dates back to the early 1990's or thereabouts. By and large, motherboard manufacturers still support PS2 technology/ports instead of providing ...
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2answers
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Don't start Windows camera wizard when connecting iPhone?

Every time I connect my iPhone, Windows XP pops up a wizard (I think it's called "Microsoft Camera and Scanner Wizard) to retrieve photos - as if it were just a camera. How do I stop this from ...
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4answers
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How do I get Windows to re-attach a USB device without having to plug it in again?

After I use the 'Safely Remove Hardware' notification area widget, how do I get Windows to re-attach a USB device (i.e. a USB drive) without having to unplug and plug it in again?
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3answers
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Do all SATA to USB converters need AC power?

I'm shopping for SATA to USB converters. It looks like most need AC power cable as well as the actual converter. I know that his one leeches the power off the host computer but also has two usb ...
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1answer
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USB keyboard 'shuts down' when holding keys

When I do not create a keyboard event (i.e. pressing or releasing a key) for more than 5 seconds, the numlock and other LEDs on my keyboard go off. When I'm holding a key for more than 5 seconds and ...
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How can one create a bootable Linux USB key that works on Mac (Intel 64 bit CPU) hardware?

I'm trying to create a bootable USB key with Linux (debian) and that can be booted on Macintel hardware. I have read that MAC's EFI can only boot GPT GUID formatted disks. I'm desperately trying to ...
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5answers
8k views

Why would my mouse pointer be jerky when it can't get a signal from my router?

I've got a fairly new PC but when moving the mouse across the screen, the pointer jerks as if the PC is freezing momentarily every second or so. Strangely, this only seems to happen if the signal from ...
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6answers
17k views

Is there way to scan a registry hive on an attached USB drive?

I have a hard drive with a virus that I removed from a PC. I can scan the file system of it as an attached USB drive. But how do I scan the registry of that USB drive since it is not booted up like ...
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Access local USB devices from a remote PC via remote desktop?

Is it possible for local USB devices to be accessed via a remote PC through remote desktop? Is there software or other configuration that can be done to support this? More specifically, I'm referring ...
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586 views

Will a USB 2.0 device charge faster plugged into a USB 3.0 port? [duplicate]

Fairly simple question, do USB 2.0 devices charge quicker if they are plugged into a USB 3.0 port rather than a USB 2.0 one. I’m not asking about a specific device I have, I just mean in general. I ...
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How to disable power to the mouse and keyboard after shutdown?

After my computer shuts down, I still have the power to the keyboard and mouse. This causes both the keyboard and mouse to have lights that remain lit while the system is off. How do I change this, so ...
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3answers
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How to install Windows 8 from USB flash drive?

I downloaded Windows 8 as an ISO image, and I'd like to install it on a computer that doesn't have an optical drive. Is it possible to install Windows 8 from a USB drive? How would I do this?
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Is there any risk in a USB physical loopback?

If you connect a computer to itself using an USB cable (and 2 USB ports), are you likely to damage the device? It will recognize itself as an USB device?
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5answers
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Would USB 3 make a difference for a USB 2 5400 RPM drive?

I've got a USB 2 5400 RPM external HD. I'm thinking of getting a new computer with USB 3 ports. If I'm currently getting read/write speeds from the external HD on USB 2 of roughly 30 mb/s (both read ...
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9answers
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What's the maximum size Windows 7 allows for ReadyBoost?

I read somewhere the Windows 7 had removed the limit on ReadyBoost from 4GB and now allows an unlimited number of GBs. I would like to reconfirm this as a fact. At present, my Windows 7 RC 7100 ...
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Multiple Operating Systems or ISO's Bootloader for a USB Stick?

I have no idea how to do this. I have 7 iso's that I want to be able to easily boot from using a USB Stick and they are: Windows 7 Ultimate x86 Windows 7 Ultimate x64 Windows 8.1 x64 Hirens BootCD ...
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2answers
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Windows 8.1 powering off USB Drives

Since upgrading to 8.1, Windows will shut down my hard drive bay connected by USB after about 10 minutes. I didn't have this issue in Windows 8 as I just went in and changed the hard drive sleep time ...
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4answers
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How to add USB 3.0 port to your laptop

What are the options to add one or more USB 3.0 port to a laptop? The only way I seen so far are USB 3 expresscard adapters but all of these adapters stick out quite a lot from the laptop and have ...
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iPhone tethering via USB not working

I can't get USB tethering to work. My setup: iMac with Mac OS 10.6.2 iPhone 3G, Sofware version 3.1.2 (Build 7D11) The phone shows up in iTunes and syncing works as it should. I went to System ...
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“Need to format the USB Flash drive” message… can the data be recovered

I have a USB flash drive, that when plugged into any machine (XP, Vista or Windows 7) the following message is displayed: Indeed looking at the drive in Disk Managment the file system is recognized ...
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4answers
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USB Ports Not Working

None of the USB ports work anymore on my HP EliteBook 2540p laptop which is running Windows 7 Pro SP1. By "not working," I mean if I try plugging in a thumbdrive or external HDD it does nothing ...
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How to disable power to USB ports when laptop is in sleep mode

I have a Windows7 laptop with two external 2.5" HDDs and a cooling pad connected through USB ports. When I put the laptop to sleep, these devices are still powered on - the fan in the cooling pad is ...
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3answers
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Script in udev rule doesn’t run

I'm running Ubuntu 9.10 (Karmic Koala) on a laptop and would like NumLock to automatically toggle depending on whether my USB keyboard is plugged in (numlock on) or unplugged (numlock off). To ...
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How can I use target mode in Linux with USB?

Kernel 3.5 introduces: This release includes a driver for using an IEEE-1394 connection as a SCSI transport. This enables to expose SCSI devices to other nodes on the Firewire bus, for example ...
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Is there a way to make Windows 7 install .iso onto USB drive from OSX?

I copied my windows 7 cd to a ISO and trying to source the image onto my USB drive from OSX. So far it doesn't seem like it's possible with disk utility. Is there something else I can do to make this ...
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2answers
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What happens when a flash drive wears out?

Flash memory has a limited number of read/write cycles, after which it fails. What happens when it fails? Is it like a hard drive, where a failed write is silently moved to another part of the disk ...
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5answers
13k views

How to automount an Android phone as USB mass storage?

When connecting my Android device to a PC, it prompts to mount it as USB mass storage. Is there a way to force it to auto-mount?
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4answers
136k views

How to format/repair a write-protected USB drive with I/O errors?

I ordered a bunch of 1GB usb drives from a semi-shady Chinese company. Most of them work just fine, but a couple of them won't let me format them because they are "write-protected." There is no write ...
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694 views

How to safely check the content of a USB stick

I received a USB stick from an acquaintance. At least it looks like a USB stick. What preparation should I do before plugging it on my PC?
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2answers
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Turn off USB power when closing MacBook lid

I have a USB-powered cooling pad under my MacBook Pro. When I close the lid to put my MacBook to sleep, I would like the cooling pad to turn off. In other words, I would like the MacBook to cut ...
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2answers
2k views

MacBook Pro USB port provides more current in Mac OS X than in Windows

I have a MacBook Pro with both Mac OS X Lion and Windows (under BootCamp) installed. While in Windows, I tried to charge my iPad 3 via the USB port. The iPad says "Not charging", but really, it does, ...
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3answers
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Laptop wakes up when I unplug/power off any usb devices

I am wondering if there is a way to change this functonality in windows - everytime an external usb device powers off or if I unplug it, my laptop wakes up from sleep, which is really annoying. This ...
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3answers
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Can I turn my external USB HDD into a wireless HDD?

There's a new league of "wireless HDDs" available out there, For example: The Transcend Storejet Cloud and the Seagate Satellite My question is: is it possible to make use of a wireless USB adapter ...
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1answer
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Linux acting as USB device

I am working on an embedded Linux platform and I have need to transfer data between the platform and a PC. The embedded Linux has a usb device port (like a printer), so this is the means by which ...
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3answers
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Ext2 or Ext4 for bootable USB Flash-drive with Linux?

I want to install Ubuntu to a USB Flash drive (so I have my Desktop everywhere and can customize it as I want). I'm still choosing what's the best filesystem for the USB; Ext2 with no journaling or ...
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7answers
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USB External HDD NOT spinning down on Windows Vista / Windows 7

I have 3 external 2.5" USB HDDs - all from different manufacturers and with different capacities. I also have access to multiple Windows Vista / Windows 7 / Windows XP computers. My problem is that ...