I have been running Office 2007 on a Windows 7 machine for 2 plus years with no issues. Just recently I have had trouble launching Outlook or once launched it stops responding. I ran the Office diagnostic tool and it was unable to complete due to a Bootstrap file missing. I tried to reinstall Office using the Repair setting and it failed too.
Welcome to the forum Bazel
Try this method to uninstall MS Office 2007 then use the DVD to reinstall because MSO Uninstall left some files on your computer and that's why you cannot re install.: How to uninstall or remove Microsoft Office 2007 suites
Good luck
System Manufacturer/Model Number HP pavilion DV6-Laptop OS win7 home premium-64bit-SP1-IE9RTM CPU T6600 2.2Ghz Motherboard HP Model 3628 Memory 4 Gb Graphics Card ATI Mobility Radeon HD 4530 Sound Card IDT High Definition Screen Resolution 1366x768 @ 60Hz