Your computers I.P. address is assigned by your ISP (Comcast, Charter, Cox, etc.) and is bound by your MAC address and/or cable modem. There are tricks of resetting your I.P., but the best way to do it is either request it via your ISP or leave your cable modem unplugged for 24 hours. You get about a 75% chance of it resetting that method.
No. The clearing process is not an acceptable method of sanitizing unclassified hard disks.
Yep. If you reformat you hard dive, every thing is deleted.
The most likely reason is that the drive was formatted with a Linux file system. Reformatting the drive to NTFS or FAT32 will make the drive usable in Windows. You could also install an ext4 driver in Windows to access the drive without reformatting it.
Yes, your hard drive wears off faster, as result it can fail earlier.
There are several partitioning products available that are easy and intuitive to use.
Get a program called recuva by piriform, the creators of crap cleaner. With that you should be able to locate the file and save to an external drive.
If that is what your operating system is installed on, yes.
If one performs a "Low Level Reformat" the data will remain intact for the most part. This kind of reformatting is the next to the last resort of solving suspected PC hard drive problems. If one performs a complete reformatting, all data will be lost.
Your hard drive will be more prone to be broken. Reformatting hard drive needs not to be very often. Hard drive is reformatted once there is no more chances of recovering it from corrupted files, virus, bad sectors, etc. When you format your hard drive, you will certainly feel that your computer is slowing down due to the hard drive being read uncomfortable for the system and later on your hard drive will be broken.
If a customer needs some information from the old computer, it may still be recoverable until the computer is reformatted.
Reformatting a hard disc will wipe the contents from the hard disc. You will need to backup the contents of the hard disc onto an external disc before reformatting and then copy the contents back to return it to the newly reformatted disc.
Most USB hard drives will work with a Mac. Many will work out of the box (the box will mention Macs somewhere) others will need reformatting.