While installing Oracle 11g on windows 7, I get these errors:

```
Checking operating system requirements ...
Expected result: One of 5.0,5.1,5.2,6.0
Actual Result: 6.1
Check complete. The overall result of this check is: Failed <<<<
Problem: Oracle Database 11g is not certified on the current operating system.
Recommendation: Make sure you are installing the software on the correct platform.
========================================================
Checking service pack requirements ...
Check complete. The overall result of this check is: Not executed <<<<
OUI-18001: The operating system 'Windows Vista Version 6.1' is not supported.
Recommendation: Install the recommended Service Pack.
========================================================
Checking Network Configuration requirements ...
Check complete. The overall result of this check is: Failed <<<<
Problem: The install has detected that the primary IP address of the system is DHCP-assigned.
Recommendation: Oracle supports installations on systems with DHCP-assigned IP addresses; However, before you can do this, you must configure the Microsoft LoopBack Adapter to be the primary network adapter on the system.  See the Installation Guide for more details on installing the software on systems configured with DHCP.
========================================================
Checking Oracle Home path for spaces...
Check complete. The overall result of this check is: Failed <<<<
Problem: The Oracle Home you have specified contains spaces ( ) in the path.
Recommendation: You must choose an Oracle Home path that doesn't contain any spaces.
========================================================

```

How can I fix these issues?