Setting up a sound and well-controlled forensic environment is crucial before the start of any investigation. Start with a fresh and forensically sterile computer. A forensically sterile computer is one that prevents the potential of cross contamination, does not introduce unwanted data, and is free from viruses and other malware. This is to ensure that the software present on the machine does not interfere with the current investigation. Install basic software, such as the following ones; they are necessary to connect to the device and perform analysis:
Android SDK
Mobile drivers
MS Office packages
Tools used for analysis