Hi,
Are you able to install other programs?
I would suggest you to try the following methods and check if it helps.
Method 1:
Error: QuickBooks has a problem in reading this registration file: qbregistration.dat: http://support.quickbooks.intuit.com/support/articles/SLN41019
Method 2:
Try to install the latest Microsoft Visual Basic C++ run-time components and then try to install QuickBooks.
How to obtain the Visual C++ 6.0 run-time components: http://support.microsoft.com/kb/259403
Method 2:
Place the computer in clean boot state and then check whether it helps.
How to troubleshoot problem by performing clean boot in Windows 7:
http://support.microsoft.com/kb/929135
Note: Once you are done with the troubleshooting, perform the steps from Step 7 to reset computer as usual.
If the Methods did not help, then it would be better to post the same question in the Intuit community (QuickBooks forum).
QuickBooks Installation, Update & Conversion: http://community.intuit.com/category/quickbooks-installation-update-conversion
Hope it helps.