USB is a universal, general interface standard for connecting computers and electronic devices.

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usb keyboard needs unplug/plug every BIOS boot to skip keyboard error or no keyboard present What cause this?

Every BIOS boot ,I get keyboard error or no keyboard present on BIOS.I need unplug/plug to skip this.After I unplug and plug all USB device,the problem solved.What cause this?Does my USB OK?
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41 views

Debian: How to boot from btrfs root on LVM on USB?

Using debootstrap I have installed a Debian wheezy system on an external USB drive with the following partitioning layout: /dev/sda: GRUB in MBR L sda1: ext2, /boot L sda2: LVM PV L ...
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38 views

How to drive this smartkey?

Feel free to migrate this question if it does not suit SuperUser SE aim. It might be a topic for StackOverflow or Unix & Linux SE. Anyway, here I am... I would like to interface a smartkey, lets ...
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29 views

DisplayPort monitor with USB hub, switch to another machine with all USBs?

So, I'd really like to just be able to sit down at my desk, with my gaming pc all connected up and working, plug my MacBook Air in to the DisplayPort and pick up all the USB devices. ...
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101 views

How to install my USB to VGA adapter on linux? I'm on Ubuntu 12.04

I bought a USB 3.0 to VGA adapter (also comatible with 2.0) and the driver that comes with is "FLUSBVGA-1.1.258.0 (1).exe" for Windows. I'm on Ubuntu 12.04 and I can't find support for this adapter. ...
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17 views

Fedora 20: frequent 20-30 second lockups, dodgy USB port at fault?

Brand new Fedora 20 install, all working fine other than occasional, seemingly random lockups. The 5s load average comes back in the 10-15 range immediately afterwards, so something is getting done at ...
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1answer
35 views

USB Type B: Why male vs. female differentiation is not enough?

This manufacturer website is very definite: The two types of plugs have the same number of pins, and are electrically identical. They are only different mechanically. This was an intentional ...
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25 views

Disable desktop extend in Windows 8

Is it possible to disable Windows Desktop Extend irrespective of any devices plugged in? aka I never ever want to display my desktop on a secondary monitor I work in a hot desking environment in ...
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2answers
40 views

laptop usb mouse freezing

My usb mouse has been working great with my laptop. A fews days ago I plugged an iphone to the usb port for charging and since then the mouse has been acting weird. It stops working for a few seconds ...
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1answer
33 views

'Active Directory Domain Service unavailable'

i installed a usb printer driver in a laptop running Windows vista Home Premium, 32bit. installation completed successfully but the printer doesn't respond to any print order giving error messages ...
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19 views

Assign permanent drive name to USB (across different computers)?

Some of the shortcuts on my flash drive need the drive to be assigned to a specific name, and I need to access this across several computers. Is there a way that the flash drive's drive name can be ...
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39 views

Damaged USB stick?

I would like to know, if my usb stick is physically damaged. I have some good readable documents, but some folders with unknown symbols and not readable data: I would like to backup this usb stick ...
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1answer
44 views

How do I use a Bluetooth-enabled smartphone as a 'Bluetooth Adapter' when it's connected to my PC via USB?

OK, so I bought an All-In-One PC from a wanker who told me it had Bluetooth. It doesn't have Bluetooth. I remember on my old PC I had a USB/Bluetooth Adapter that I could plug in to my PC's USB port ...
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2answers
62 views

USB drives not recognized [closed]

On my school computer, I tried plugging in my flash drive, and I can hear the sound Win 7 makes when a USB is plugged in, but I can't see it in My Computer. Also, there are 2 other partitions of the ...
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1answer
48 views

Will the usb disk wear out when it is set to read-only

I'm aware that usbs' have a limited read/write cycles. What if, I put a whole linux installation, about 4Gb, on a usb and set the usb to read-only. Then set a ramfs for those apps that needed a ...
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21 views

Keyboard intermittantly connecting and disconnecting in Windows 8.1

I have been experiencing an issue where my keyboard will occasionally disconnect for several seconds, and then reconnect and function normally. When it disconnects, the keyboard doesn't function, and ...
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1answer
61 views

Windows 7 is making weird sounds while copying,deleting or doing anything to files on a pendrives [duplicate]

I have Windows 7 Ultimate, my computer is pretty old (somewhere around 8 years already?). And it makes really weird, beepy-like sounds while copying files to any pendrive(so it's a Windows issue, not ...
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1answer
35 views

In Windows, is it possible to manually select USB amperage output?

I'm looking to limit the amperage output Windows gives to usb devices through a certain port. I'm finding Windows is providing 500mA to devices that only operate on 100mA or lower, which is consuming ...
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1answer
152 views

How to debug Dualshock 4 Pairing

I'm not sure when this happened but all of a sudden I'm unable to pair my PS4 controller with my mac. I'm running 10.10, but I don't think it's a 10.10 problem since I was able to pair it instantly ...
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35 views

Force Windows to treat USB drive as internal

How do you force Windows Pro to enable dynamic disk mode on an external USB drive? I have a small home server using a NUC and multi drive USB enclosure that I'd like to be able to use dynamic disks ...
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1answer
191 views

Create Linux swap on external USB 3 hard drive

I have an external USB 3 hard drive USB 3 port on Debian, and I would like to create a swap partition on that drive which drive also holds the partitions for databases and other high-volume stuff. ...
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1answer
291 views

Error loading operating system on Windows 7 Install USB

I created a Windows 7 Install USB the usual way. NTFS partition on pendrive, made it bootable, copyed all files from DVD to the pendrive, test it on my laptop. It works, at least on my laptop (HP ...
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1answer
191 views

Clone HDD to USB to SSD?

I bought a new computer (ASUS G551JM) with a hard disk drive (1TB 7200 RPM), but I want to transfer the OS (and everything else) onto my Samsung EVO 840 (500GB). However, when I purchased the SSD from ...
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2answers
35 views

Turn off USB power when system not in use on motherboard

I have an Asus Z77 sabertooth motherboard. I also just got a USB powered audio DAC for my desk. It has a very bright white light on the front of it and it only turns off when there's no power going ...
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1answer
31 views

win7 not acknwledging external USB HD as “removable”

Win7 does not mark my external HD as "removable". Consistently I do not have an "eject" entry in the context menu. Curiosely the "safely remove" widget does list the drive, but then fails because ...
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47 views

USB drivers for an ASUS M5 A78L USB3 motherboard

My three year old 64 bit Windows 7 PC has an ASUS M5 A78L USB3 motherboard with two USB 2.0 ports and two USB 3.0 ports. I used the Driver Booster app to bring my drivers up to date. The result was ...
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26 views

Would USBs on non-Apple monitor with DisplayPort work?

Would the USB ports on a 3rd party monitor work on MacBook Pro with Thunderbolt? I have a MacBook Pro 13" from ~2012 (13", no retina, i7 model) that I'm still pretty happy with. Now I'm sick of ...
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4answers
146 views

Install linux on computer that can't boot from USB, but no CD/DVD available

I have a computer (A) that I want to install linux on. The bios on A does not recognize "booting from USB". I do not have access to a CD or DVD to create a boot disc. I do however have access to other ...
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1answer
106 views

Slow performance running VM Player image (virtual machine) on USB3.0 external drive

I have a virtual image I'm trying to run over USB3.0 on an external drive using VM Player. The performance is very slow and I cant seem to find the culprit. I've ran some benchmarking tools and my UP ...
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1answer
34 views

Connect 5 external harddisks to a single usb port

I want to connect 5 external hardisks to single USB port. I think that can be done by giving some sort of powersource to individual external HDs. How much voltage should I provide to individual ...
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111 views

Boot USB Tails through VirtualBox?

So I have Tails 1.2 on my USB (Disk 5) and also on a partition (2) on an external hard drive (Disk 4). The USB shows up as 3.75GB and the partition is 6GB. I want to be able to boot either Disk 4 or ...
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12 views

Dont know how to connect AC-97, HDAUDIO, and USB connectors to motherboard [duplicate]

I'll provide pictures so you guys can see, but basically I recently bought a new case for my pre built lenovo k330b. I cant find how I'm supposed to position the connectors. Please help me out with ...
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60 views

Add 2 HDD connected via USB to Synology DS211j using Raid 1

I have a Synology DS211j and 2 old 2TB S-ATA HDD. What I plan to do is to buy two cases for these two hard disk drives that allow for connecting the hard disks to my Synology using the USB port. I ...
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3answers
39 views

Safe to charge USB devices while doing other power-consuming tasks?

I just recently got an iPod, and I completely forgot that without an adapter you have to hook it up to your computer by USB port to charge it, sync, etc. I currently have it plugged into the front USB ...
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9 views

Program should use 4G USB modem and not ethernet [duplicate]

We have a Windows 7 machine that is connected to internet by satelite through ethernet. This workstation also has a USB 4G modem that should be used by a software application. We would like to have ...
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1answer
75 views

How to emulate a virtual USB drive in Windows?

I have a remote server where I should test work of some application with USB drive. Unfortunately, there is no ability to install any USB drive there. So, I need to emulate a virtual USB drive in ...
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1answer
93 views

Unknown Device USB Windows 7

Everytime I plug in any USB drive on my computer on a Windows 7 machine, I get this error: Unknown Device with Code 43. I have tried many solutions such as searching for missing drivers and installing ...
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2answers
51 views

How do I break out a DB-9 or DB-25 serial port from a PowerBook-G4 or even a more modern MacBook Pro

Essentially, we would like to interface to an external device which conforms to a serial DB-9 type hardware interface (or DB-25, because we have a crossover cable for that), and all we have are Apple ...
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42 views

How can I make my wireless keyboard respond faster

I am using an A4tech wireless keyboard(GL-6) with my windows xp.I am experiencing some issues with my keyboard.Very often during my typing, sometimes it doesn't respond to my key-presses and ...
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3answers
98 views

Unable to get Linux Live installation media to properly boot from USB on 2006 iMac

I'm trying to dual boot linux on a 2006 iMac. I have tried Arch, Ubuntu, and Fedora. I originally created the Arch USB installation media following the instructions in the Arch Beginner's Guide. ...
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1answer
27 views

Is it possible to use USB token as file storage

Is it possible to store and retrieve files other than certificate in USB etoken? I would like to use it as read-only USB flash disk.
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32 views

USB host controllers broken on every reboot

Something happened (including Windows Updates?) and now every time I reboot, most of my USB host controllers/root hubs are not working: The broken ones say: This device cannot start. (Code 10) ...
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13 views

Syncing two Windows machines via USB

I have a USB crossover cable, and want to regularly sync two laptops. I don't want to use Windows Easy Transfer....It just does not have the flexibility or options to do what I'd prefer to happen. ...
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1answer
45 views

Why does my generic USB hub not allow my PC to find a second plugged-in flash drive?

On my Dell Model i3531-1200BK (running Windows 8.1) I am using a 4 slot (no name) generic USB hub that works fine with one flash drive. But when a second flash drive is inserted, the laptop starts ...
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12 views

3g USB reciever not connecting

First of all Maybe a sorry is needed because I am not sure if this is the right place for this question. Now, I have a 3g dongle from alcatel named 'x230s' provided by wind(italian internet company) ...
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1answer
35 views

Hidden files on USB drive [duplicate]

Hello Dear Sirs here, I have such problems on my USB drive: I have a lot necessary files and documents on it and my trouble is that i connect it to another computers and after when i will connect it ...
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1answer
151 views

Safely Remove Hardware and Eject Media not working

Today I turned on the PC. I used it a little bit, and tried ejecting my external HDD, it would not exit. To fix this i have tried: Going to the Safely Remove Hardware icon in the tray, but when I ...
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2answers
49 views

Resetting USB device without disconnecting it

I use a USB cellular modem to connect to the internet. Unfortunately, the modem sometimes connects to a low strength network and the only way to reset the connection is to unplug the modem and ...
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3answers
300 views

What is the difference between USB Mini A and Mini B?

I have a bunch of USB A to Mini B cables and a single USB A to Mini A cable. I have lost track of where they come from. The two types both look exactly the same with the USB A side having a white ...
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51 views

How to boot from USB and copy files to USB?

My Windows 7 installation is broken. It won't boot and when I run the installation from bootable USB, it gets stuck right at the beginning saying "Loading something something (can't remember what)", ...