Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Issue with key input - Single key press fills entire prompt with key

19 Jul 2016   #1

Windows 7 Ultimate x64
Issue with key input - Single key press fills entire prompt with key

I'm having an odd issue wherein pressing a single key will immediately fill the entire allowable space with that key press.
For example, pressing the "a" key will fill, immediately, the entire allowable space with "aaaaaaaaaaaaaaaaaaa". Similarly pressing backspace will immediately remove everything. Note the use of the word "immediately". It does not sequentially fill the space with the key input, the way it might if you held down a key, but rather upon pressing a key the text field is simply filled with that key all at once (to the best of my ability to detect anyways).
As a result, I am unable to log on to my Windows 7 desktop computer. The above was confirmed using the reset password fields.
At first I thought this was a keyboard issue, so I shutdown the computer, unplugged the keyboard, booted it back up (without a keyboard plugged in) and turned on the on-screen keyboard to try to type in my password. The problem persists.

Additionally, the computer will enter sleep mode within a minute of being left untouched (maybe 20-25 seconds by my count). You can probably guess that I did not set it to do so.

This computer is used by my parents and sibling, so I don't know what they might have done to cause any such issue. I verified that everything is plugged in as it should be, and that no unusual additions have been plugged in.
My sister was the last one to use the computer before the problem started. By her account:
She was trying to watch something on Netflix but it would not load. She attempted to restart the browser a few times and eventually nothing would load. At no point did she try to type anything, so she did not notice if the key input issue was there at that time. She then restarted the computer, and found herself unable to log in due to the above key input issue.

Any help would be appreciated. Thanks.

My System SpecsSystem Spec
19 Jul 2016   #2


Hi welcome to the forum

start computer and then start tapping F8 when menu comes up use arrow key and select last known good configuration. see if you can get on now.
My System SpecsSystem Spec

 Issue with key input - Single key press fills entire prompt with key

Thread Tools

Similar help and support threads
Thread Forum
M17x issue with constant key press - F24
I have only seen one other thread anywhere online about this problem. The issue only presents itself when I try to use flight sim or scroll over a taskbar item. The taskbar icon will show a blinking preview which is extremely agitating, and when I use FS and click on the toolbar on top it will make...
General Discussion
Keyboard input issue-not hardware problem
Hello, I am trying to fix my friend's Asus F6Ve computer. He bought it 3 years ago in Taiwan.(Disregard my comp specs) His computer is in perfect working order, except for the keyboard. The input is incorrect on some keys. For example, I can not get a capital "C". I hit shift+C and my request is...
Hardware & Devices
Screen Shots with single key press
I dont like it how if i take screenshots i have to go to paint and paste them and save them. Id like to be able to just press prt scr and have it save to a certain folder. I have fraps but thats only for games....
General Discussion
Issue with keyboard input
Hey guys, sorry for my noob question; i've looked a bit over in language/regions and ease of acces and i couldn't find what i was lookin' for so i thought i'd ask somewhere for help. Whenever i type ' or " only once nothing happens, the symbol appears only after i pressed anything else after it,...
Hardware & Devices
New DNS trojan taints entire LAN from single box
more:The Register
System Security

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 17:29.
Twitter Facebook