try this method by dayslleepper: *www.thinkdigit.com/forum/laptops-n...r-17r-turbo-laptop-thread-82.html#post1811304
1. I have'nt done this, but AFAIK it won't affect any of your files, it'll just reset the settings of OS to the defaults..
2. It means that you have successfully calibrated the battery..
3. No, coz battery would be cut off from the power as soon as it reaches 100%, though temps could be a concern.
4. Use desktop mode if you are connected to AC adapter for longer times, and use Longevity mode if you frequently connect and disconnect AC adapter, though i have enabled Desktop mode and it says that it'll only charge b/w 50-100%, i don't see it happening..
if your battery is staying @ 98%, then try to further use on battery till it reaches 50% of charge, then charge again, it should reach 100% charge, the fact is that dell batteries won't charge @ 98% to prevent overcharging of batteries..
5. Have'nt tried that, but i think it should work and should bring your laptop to factory default settings..
6. It's embedded in the BIOS itself, just install the correct version of windows 8 if you want to re-install windows, and it should automatically pick up the key from the BIOS..