Windows 7 RC to full version - confused!

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Hello everyone.

With the Windows 7 RC about to expire i'm racing to get a full version installed, however after hours of googling i'm confused about a few things i hope you don't mind helping me understand.

Firstly, i have read that it is possible to upgrade from the RC to the full version without losing existing data, is this recommended, or even true? I have also read that if you just install over your current OS that your old files will be saved in a windows.old file, again, is this true and is it easy to recover your files afterwards?

Secondly, what exactly is the difference between the full and upgrade versions you can buy? I have read that you can do a clean install from an upgrade version if you are currently running a genuine windows OS, but again i don't know if its true or not.

My last question is similar to my first, and it's to do with backing up and transfering information. Basiclly, which is the best way to do it? I was hoping that i could install without having to back up everything as i don't own anything suitable for backing up onto (around 180gb of data).

If a clean install is the only way to go, would it be a viable idea to buy another internal HDD and transfer my data onto that, remove it then reinstall it and transfer my data back onto my original drive? Would it be as simple as just copy/pasting files onto a HDD (internal or external) and then back, and would things such as antivirus software continue to work?

Thanks for taking the time to go through this, and apologies for my barrage of questions, this is my first experience of removing/reinstalling an OS!

Thank you in advance,
Doug.
 
Thanks for the link, i've read through it and it looks good. I forgot to mention though that as i am a student i can buy Windows 7 Ultimate 64bit for an affordable price so i'll probobly do that, however it appears to only be an upgrade version and not a full one.

Does the Windows 7 Ultimate RC count as a current Windows OS? If so, i guess i will just need to copy the dvd onto my computer and change cversion.ini? As i will be installing Win7 Ultimate 64bit over Win7 Ultimate 64bit RC.
 
Cheers for the reply. :)

From looking at the link i was under the impression that changing the entry in 'cversion.ini' to 'MinClient=7077.0' would allow the retail version to upgrade an older version (build 7100 in my case) unless i've misunderstood what you are saying. :confused:
 
Thanks for the response guys.

A quick question about a clean install, will an upgrade version of Win7 work for a clean install since i am already running the RC?

I think i'll have to do a clean install and just backup my essential stuff. Reinstalling and downloading games etc again will be a pain, but worth it to have a solid install i guess :)
 
I was just about to order an upgrade version of windows 7 ultimate when i had a thought...if after upgrading from the RC to the retail version and there are errors such as Kotu mentioned, will an upgrade version work again to do a clean install?

I'm planning to use the 'upgrade trick' to attempt to keep my files and settings (after backing up any essential stuff) and would like to know if any errors do occour, will an upgrade version still work for a clean install?

I'd very much like to avoid having to backup and reinstall all my apps, but if things go wrong i'd like to keep the option for a clean install if possible!

Thanks in advance :)
 
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