Keypad on keyboard not working with some websites.

Question

After upgrading to windows 7 I have certain internal and external websites that will not allow the numbers on side of keyboard to work.  I found some .net 4 security updates that were blocking those number keys.  After removing updates the problem
went away for a short time on one computer.  The other computer I had to remove .net 4 completely before I could use the numbers on the side.  Both computers after seeing them work stopped working again without the security updates being reaplied. 
The .net security updates that I removed from Microsoft said this, "This update resolves vulnerabilities that could allow elevation of privilege if a user goes to a specially crafted website or a website that contains specially crafted web content."
If I remote into the computer using vnc everything works fine.  I just cannot use the side numbers keys when sitting at the local pc.
Any ideas that may help with this would be great.

Answer 1

Hi,
To test this issue in Clean Boot mode would eliminate the software conflicts.
If this issue persists, try this way to test:
Type without using the keyboard (On-Screen Keyboard)
http://windows.microsoft.com/en-in/windows/type-without-keyboard#type-without-keyboard=windows-7
if this issue does not occur in this situation, we can reinstall the Keyboard driver.
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Alex Zhao
TechNet Community Support