Mouse and keyboard not working at W7 login screen

Hey, I've searched for hours looking for solutions to my problems, here they are.

Whenever I start my computer and it gets to the Windows 7 login screen, my mouse and keyboard won't respond.

They work in BIOS but once Windows 7 starts to boot up...nothing!

My PC doesn't have any PS/2 ports on it, only USB so I can't even access my Desktop to see if the driver are enabled or if the Power Management options are right.

I can't do a "Last Known System Configuration" because F8 won't work.

My information:

Alienware X-51
Windows 7 Home
Intel Core 3.40
6GB RAM
NVidia Graphics Geforce GT545
Logitech Keyboard
Alienware Mouse

I can provide any other info that is needed
18 answers Last reply
More about mouse keyboard working login screen
  1. you tried another mouse and keyboard
    u tried another operation system
  2. At the login screen, unplug the keyboard momentarily, then plug it back in. Windows should re-detect it.
    Also check in BIOS, make sure Legacy USB Support is enabled.
  3. I have tried another Mouse and Keyboard-they won't work
    I only have Windows 7

    I'll try unplugging and plugging it back in and post back here in a bit
    When I looked through BIOS, I didn't see a "Legacy USB Support" option, can you show me how to find it? Is it possible that it has another name on my system?

    There is a "USB Controller" option and that's enabled by default.
  4. So I tried what Jtt suggested(Unplugging and plugging back in the keyboard)but it didn't work.

    I still don't know how to get to the "Legacy USB Support" Option in BIOS
  5. Onus said:
    At the login screen, unplug the keyboard momentarily, then plug it back in. Windows should re-detect it.
    Also check in BIOS, make sure Legacy USB Support is enabled.


    I accidentally forgot to click reply, my bad!

    I tried unplugging and plugging the Keyboard back in(Mouse Also)and that didn't work.

    Could you explain how to get to that option in BIOS because I didn't see it.

    I did however, see an option that said "USB Controller" which is enabled by default.
  6. in bios
    seek this tab
    bios integrated
    or bios peripherals
  7. profkefah said:
    in bios
    seek this tab
    bios integrated
    or bios peripherals


    The closest thing I have to that is "Advanced BIOS Features" and in there my only options are:

    Bootup Num-Lock [On]
    OptionRom Display Screen [Display]

    My tabs are:

    Main
    Advanced
    -Standard CMOS Features
    -Advanced BIOS Features
    -CPU Configuration
    -Integrated Devices
    -Power Management Setup
    Security
    Boot
    -Hard Disk Drive BBS Priorities
    Exit

    If that helps
  8. check
    Advanced BIOS Features
    Integrated Devices
  9. profkefah said:
    check
    Advanced BIOS Features
    Integrated Devices


    Under Advanced BIOS Features the only two options I have are:

    Bootup Num-Lock [On]
    OptionRom Display Screen [Display]

    Under Integrated Devices my options are:

    USB Controller [Enabled]
    HD Audio [Enabled]
    Onboard LAN Controller [Disabled]
    Primary Display [Discrete]

    PCH SATA Configuration
    SATA Mode [AHCI Mode]

    (It won't allow me to change the SATA Mode because it's grayed out)

    Which one is it?
  10. ok
    man since keyboard working properly in bios
    u may have to install another copy of windows
    since this one u installed may be the cause of problem
  11. Is your copy of Windows 7 legitimate?
  12. Onus said:
    Is your copy of Windows 7 legitimate?


    Yes, it came pre-installed on my PC but I also have a install/repair disc
  13. profkefah said:
    ok
    man since keyboard working properly in bios
    u may have to install another copy of windows
    since this one u installed may be the cause of problem


    Is there a way I can do that without losing all my files?

    'Cause I have really important stuff on there. (pictures and movies of family outings, notes to self, game save files,etc) :(
  14. You could replace your original hard drive, use the repair disk to restore to a new drive, then install your old drive as a secondary drive in order to get the data off of it. If the new drive does not come with one, you will also need to get a SATA cable to reconnect it.
  15. Onus said:
    You could replace your original hard drive, use the repair disk to restore to a new drive, then install your old drive as a secondary drive in order to get the data off of it. If the new drive does not come with one, you will also need to get a SATA cable to reconnect it.

    THATS RIGHT
  16. Onus said:
    You could replace your original hard drive, use the repair disk to restore to a new drive, then install your old drive as a secondary drive in order to get the data off of it. If the new drive does not come with one, you will also need to get a SATA cable to reconnect it.



    Is there...a guide or walkthrough or something for that?

    I don't even know where I could get another Hard Drive or what a SATA Cable is or is for.

    How could I get the data off it without being able to access it?


    I don't know nothing 'bout fixin' no computers.
  17. There are videos on YouTube of people installing or replacing hard drives. Many of them show an IDE (PATA) drive being replaced; the only differences are the cables, and there are no jumpers to set on SATA drives. An IDE drive uses a 4-pin Molex power connection and a 40 (or 80) pin ribbon cable (there are thick round ones available too, but the wide ends are the same); a SATA drive usually uses 15-pin flat connector (there may be only 4-5 wires going into it) for power, and a thin 7-pin data cable. You would remove your original drive and install the new one, then restore your system to the new drive. Assuming it is now working, you then re-install the original drive as an ADDITIONAL drive, not replacing the new one. It will appear as another drive letter (usually D: or E:, depending on if there is an optical drive in your system). Your system should have a spare power connector in it, but if the new drive does not come with a data cable, you may need to buy one. SATA cables are usually pretty cheap (<$5). If the drive is IDE, let us know as there are a few additional details like jumper settings on the drives.
  18. Onus said:
    There are videos on YouTube of people installing or replacing hard drives. Many of them show an IDE (PATA) drive being replaced; the only differences are the cables, and there are no jumpers to set on SATA drives. An IDE drive uses a 4-pin Molex power connection and a 40 (or 80) pin ribbon cable (there are thick round ones available too, but the wide ends are the same); a SATA drive usually uses 15-pin flat connector (there may be only 4-5 wires going into it) for power, and a thin 7-pin data cable. You would remove your original drive and install the new one, then restore your system to the new drive. Assuming it is now working, you then re-install the original drive as an ADDITIONAL drive, not replacing the new one. It will appear as another drive letter (usually D: or E:, depending on if there is an optical drive in your system). Your system should have a spare power connector in it, but if the new drive does not come with a data cable, you may need to buy one. SATA cables are usually pretty cheap (<$5). If the drive is IDE, let us know as there are a few additional details like jumper settings on the drives.



    OK. :o

    I'd prefer to expend all other options before I perform rocket surgery.

    I hope you'll understand. :D
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