Upgrade patches fail with message ""ERROR: patch cannot continue. The disk 1.30 is almost full".

First of all, make sure that your disk has plenty of room to install OFP. This is obvious. What not so obvious is that even if you've got 20 gigabytes of free disk space, you can still get this error if your Windows virtual swap file size is not large enough. Increase your Windows swap file's maximum size to at least 400MB. If the problem continues, try increasing it to 1000MB.