I need to buy a new laptop anyway so I was wondering if I completely wipe my current laptop (It's a sony vaio) could I then use it as my cold storage laptop? I plan to make a large investment in bitcoins very soon and was wondering if factory resetting my current laptop would be sufficient in terms of security? Cheers.
1. Disconnect the laptop from internet.
2. Run Bitcoin-QT or some program to generate your address.
3. Send the wallet to an USB.
4. Remove the USB.
5. Ctrl+Shift+Del your wallet details from the laptop. If possible, format it once.
6. Connect your laptop to the internet and send bitcoin to your address, whose details are in USB.
7. Just keep the USB detouched from all internet connections... and you are safe
No need to use the Bitcoin-QT and send the dat to a USB. All he need is vanitygen.