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: Control key intermintenttly locks down

24 Jun 2015   #1
pragmobile

Windows 7 home premium 64 bit
 
 
Control key intermintenttly locks down

A very vexing problem, that sets my hair crawling in frustration for about one hour cumulatively, every month, wasted on dealing with it.

I have a Samsung series 9 ultrabook, i5, 4GB RAM with windows 7 home premium, all updates installed. About 6 months ago I noticed this problem- every few days, out of the blue, the keyboard starts acting up:

basically it seems like the control key is pressed down even though its not; a reboot always fixes it, but its highly annoying to have to reboot when in the middle of work with 20 open tabs in firefox and tons of unsaved documents.

How do I know that its the control key? I am only guessing, but what happens is that some keys (only some) act as if control is pressed, e.g. in notepad I try to type H and get the "replace" window.
Most keys still work fine; so its not purely a "control held down" problem. its only some keys that behave as if control is pressed, I think it is C, V and G. The other keys work. I know its not a hardware problem because:

1) A reboot fixes it instantly- until the next time
2) This problem happens whether on the built in keyboard or an external USB keyboard
3) this problem sometimes only happens in firefox/chrome's URL address bar; and in the windows START "search programs and files" bar; but sometimes it happens globally in windows.

I tried:
looking for apps responsible (and shutting them all down - doesn't work - its a WINDOWS problem, not an app problem)

* Turning off all "accessibility" features- used to solve the problem a few times, now doesn't have any effect
* Updating bios, windows etc; running ccleaner, other system cleaners, virus / malware scanners and optimizers, etc.
* removing keyboard drivers from device manager, rebooting and reinstalling them
* Shaking the ultrabook senseless (luckily its SSD so it can take it)
* trying an external keyboard - the problem is duplicated there also (when it happens).

I thought of a system restore but for some mysterious reason, I have no restores left (I used to have it running all the time but now it says it can only go back a few days at a time, which always fails when I try it - says "restore failed". Is it all a virus that is set to annoy me and blocks the system restore?)

The only thing that sometimes fixes it without rebooting is rapidly pressing all shift, alt control and windows keys madly for a few minutes. Sometimes performing this tribal ritual takes 10-15 minutes to get rid of the problem, because I refuse to reboot! I have too many things open and in progress, and I won't remember where I was in half of them if I reboot. (Hibernate resume doesn't fix it).

Any help dearly appreciated.


My System SpecsSystem Spec
.
24 Jun 2015   #2
MilesAhead

Windows 7 32 bit
 
 

One of the suggestions on this page:
Keyboard randomly acts as if the ctrl key is being pressed [Solved] - Windows 8 - Windows 8

claims pressing and releasing both control keys simultaneously will reset the keyboard bios. I never heard that before but it shouldn't cost anything to try it.
My System SpecsSystem Spec
Reply

 Control key intermintenttly locks down




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
I've lost control of permissions, how can get get control back?
Thanks for reading this. Boy, do I need help. Somehow I got my permissions all messed up. I can't access some folders. I have worked a lot trying to use properties-security tab and playing around, and I can sometimes change permissions so I can use a folder. But I am trying to open "Documents...
General Discussion
Can't control gain! No slider in control panel!
Hello! I got myself an Audio-Technica AT2020USB+ condenser microphone a few weeks ago, and I haven't really found out how I can change the gain, which I hear is important to do. There is only one slider where the gain slider also should have been. The mic doesn't have a gain know like some other...
Sound & Audio
Command Line Open Control Panel\All Control Panel Items
How to open "All Control Panel Items" from the command line? thanks...
General Discussion
Win 7 Locks up
When I play an iso file (mounted) My computer freezes, i just did a fresh install of win 7 pro 64 bit, it was ok before so i am not sure where this problem has come from. Any ideas is greatly appreciated. Thanks JD:cry:
BSOD Help and Support
Pc Locks Up
I'm running a fairly fresh install of win7 (installed 2 or so months ago) which lately has been randomly locking-up/freezing. I don't even get a response from ctrl+alt+del, so I'm forced to do a hard reboot. Anyway I looked in events viewer and wondered if these instances had any bearing: The...
Network & Sharing
USB Locks Up Win 7
So here is the deal, I am using Win7 64 bit RTM on my HP s5120f. Sometimes when I plug in a USB flash drive, or card reader, or even use the built in card reader, it completely locks up and I have to shut it down. Is this a hardware or software problem? It is starting to really bug me...
Hardware & Devices


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 05:31.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App