Luckily there are tools like SuperAntiSpyware Portable Scanner that make the job easier for you. As you can infer from its name, SuperAntiSpyware Portable Scanner is a portable app you can run from any removable device to find and remove spyware. It's fast, efficient and really simple to use.
All you have to do is double click the executable file and select the area you want to scan (drives, memory, Registry, etc.). SuperAntiSpyware Portable Scanner looks for any suspicious element such as Trojans, dialers and adware, and lets you choose between putting them into quarantine or deleting them straight away.
That said, SuperAntiSpyware Portable Scanner has a couple of annoying features. First, it doesn't have real-time protection; and second, this free version doesn't support scheduled scans. However, being a portable version, SuperAntiSpyware Portable Scanner has an advantage over the standard desktop version: it doesn’t require installation, and can be stored and run anywhere.
With SuperAntiSpyware Portable Scanner you can easily scan removable devices and other drives in search of spyware, adware, dialers, Trojans and other threats.