Spyware are software programs that can be automatically installed when you browse the internet or when you install free software. They specifically track your personal information such as credit card numbers , bank details , etc without your understanding and permission .
Spam is an Electronic Mail (e-mail) that refers to unsolicited commercial massage or unsolicited bulk massage.
How to prevent Malware infection
Malware can come bundled with shareware/freeware or other downloadable software So don't download and try untrustworthy softwares
Always use your Anti-Virus to Scan any Downloaded Software BEFORE Installing. Search for free version from industry standard anti-virus vendors only
Don't be cautious of free anti virus, and DO NOT USE cracked or free serial key for anti-virus program that you may “find” on the Internet. There are free versions from industry trusted anti-virus vendors.
Use an industry standard internet security software such as from: Kaspersky Internet Security/Anti-virus , AVG Internet Security/Anti-virus, Trend-Micro, Norton/Symantec, Microsoft, McAfee, Panda, Sophos, Bullguard, Avast, Avil, ESET etc. (If you are not sure which is the best product for you to buy ask for more information from PC Doctor).
Be aware that most current malware arrive as e-mail attachments. Don't open unfamiliar or unsure attachments e-mail
Enable Mail Client & Microsoft Office application’s Macro Security
Perform Windows Update Regularly & Make sure that your operating system is up-to-date
Use an industry Standard Firewall (Software/Hardware)
Never use removable media without scanning it for viruses