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Windows 7: Some Exact Same Keys Randdomly Stop Working

29 Mar 2019   #11

Windows 7 Ultimate

Quote   Quote: Originally Posted by Paul Black View Post
Hi NawafDandachi,

If it was one or two keys sticking/malfunctioning I would suggest that it could be dirt or crumbs that have managed to find thier way underneath the keyboard and are disrupting the contact of the keys when they are pressed, but with the issue involving several keys I wouldn't think that is the cause!

Have you got a system restore point prior to the issue happening that you could try?

I hope this helps!

Surely not dirt, the laptop is new, and I don't eat anything while I'm using it. The issue occurs and resolves with the 5-6 keys concurrently.

Well yeah, Restore is my last resort. I should try that. But I've got alot of programs unistalled, registry cleaned, cache removed, startup items disabled since the last system restore. System restore would revert all those changes. I'll attempt that tomorrow morning.

Any hardware problem you may think off?

My System SpecsSystem Spec
29 Mar 2019   #12
Paul Black

7 HP SP1 64-bit Vista HB SP2 32-bit Linux Mint 18.3

Hi NawafDandachi,

Quote   Quote: Originally Posted by NawafDandachi View Post
Well yeah, Restore is my last resort. I should try that. But I've got alot of programs uninstalled, registry cleaned, cache removed, startup items disabled since the last system restore. System restore would revert all those changes. I'll attempt that tomorrow morning.
OK, I can see that would cause a big issue for you, although you could make a system image prior to trying that so you can revert back to it if it doesn't work!

It could possibly be a system file corruption. Run SFC [System File Checker] as per my instructions below!

SFC [System File Checker]

SFC [System File Checker] is a Windows utility program for detecting and repairing any corruptions in the protected system files of the Windows OS. If any files are missing or corrupted, they are replaced with a cached copy that is located in a compressed folder at %WinDir%\System32\dllcache. The %WinDir% placeholder represents the Windows OS folder C:\Windows. SFC must be run from an elevated command prompt:
  • Click Start.
  • In the search box type cmd.
  • Right-click the cmd icon from the search results under Programs and select Run as administrator.
  • The elevated command prompt window will now open.
Copy sfc /scannow [yes there is a space there] and Paste it [you need to use the mouse right-click and paste for this as CTRL+V doesn’t work] into the elevated command prompt window and press Enter. When the scan has completed re-boot.

IMPORTANT: Do NOT close the elevated command prompt window until the verification is 100% complete.

IMPORTANT: It might ask for the Win 7 installation DVD to enable SFC to make more than minor repairs. Some files saved on your computer might get deleted during this process.

The scan results will be shown after this process is finished. If any errors are reported, then run it again two or three more times, re-booting in between. For some reason, this can make a difference. I think it has to do with the settings.ini file sometimes showing false positives! If after that, you get a message saying Windows Resource Protection found corrupt files but was unable to fix some of them, then post the CBS.log in C:\Windows\Logs\CBS\CBS.log. I am sure that someone here will be able to look at the log file and give you an answer or advice.

This tutorial [Published by Brink] will show you how to upload the file => Screenshots and Files - Upload and Post in SevenForums.

I hope this helps!
My System SpecsSystem Spec
29 Mar 2019   #13

Windows 7 HP 64

It seems to be a hardware problem. As when it happens it affects more than one key it's probably a bad contact on the flat cable connector.
Did you ever take off the keyboard?

The computer scans columns and rows on the Keyboard on a matrix. If a column or row wire has a bad contact, more than a key will stop working (that is happening on yours).
My System SpecsSystem Spec


 Some Exact Same Keys Randdomly Stop Working

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