Symptom:
You receive an error message at some point during the installation process which appears similar to that below:

Problem:
You need a certain amount of space to physically install a product onto your hard drive, this will be indicated in the product Readme, or accompanying documentation - e.g. CD-inlay booklet.. 
The installer has determined that it cannot fit the necessary files into the specified location.

Cause:

• You may have specified the wrong drive - check how much available space you have on each drive.
  Note that a healthy system should have at least 10% of its capacity free.
  
  Check your available space by using the methods below:
  
  
  
• You may be trying to install onto a drive that has had allocation quotas applied. If you receive a message asking you to 'increase your drive space quota' contact your IT support staff to perform the installation for you - they will be able to install the product without impacting on the space made available for your files.

It is not recommended that you install onto a network drive unless:

1. The network drive is mapped as a common drive letter for all users (e.g. P:) through a start-up script, or policy application.
2. Your network infrastructure is well maintained, and at least as fast as 100Base-T, ideally 1000Base-T.
3. There is little other traffic that uses your network during the periods that you wish to use the software.