Yes

Here's the error I get when I try to download java:
Download failed:
from=http://javadl.oracle.com/webapps/download/GetFile/1.8.0_131-b11/d54c1d3a095b4ff2b6607d096fa80163/windows-i586/jre.1.8.0_131full.
msi,
to=C:\Users\(my name :P)\AppData\LocalLow\Oracle\Java\jre1.8.0_131\jre1.8.0_131full.msi

Nothing is working..

Java won't install either. I keep getting an oracle error and yes I've tried downloading a fresh copy after uninstalling the original

Should I reboot my pc? (Again)

Thanks for the help guys, really appreciate it :)
I didn't get the Minecraft.temp file message I just got the "unable to launch native launcher" or sometimes it's "unable to download native launcher" message.
I'll try your solution though, humfrydog

No
Yes
No
No
No
I've tried to install java but that doesn't work either

yes, multiple times

I have no idea when i'll be on as my launcher refuses to download.

For some reason I am unable to download the Minecraft native launcher therefore I am unable to play Minecraft. I've deleted and temporarily disabled all my ant-virus apps and protectors. I've also tried taking advice from other forums and looking into common solutions but nothing has worked so far. It would be great to be able to play again and I hope this problem clears up soon, but atm I am unsure what to do. Java is also not downloading for some reason. I don't know if the download's problem for java is the same for Minecraft's. Help?