Yes, some can, sadly. :(
The best thing to do is to back up all your files on a blank DVD disc....so you don't boo hoo later
Files can get lost due to many reason, like uh, users deleted some files mistakenly. the iphone and ipad get broken and the memory card get attacked by virus, etc. but generally they can be recovered quickly by Data Recovery for iTune, Data Recovery for Mac by Wondershare.
The website Recover My Files offers many different data recovery services. Examples of these services are recovering files deleted from the Recycle Bin, files lost due to reformatting of hard drives, files lost as a result of a virus, and files lost during a system crash.
Data recovery experts can help you in a crises to recover lost data and files. If your computer crashed, you got a virus, or any other disaster strikes, contact a data recovery expert for help recovering your valuable information.
A person can protect their computer files through a regular backup schedule, and using virus protection software to prevent malicious damage. If files are corrupted, there are a number of good data-recovery software programs to assist with recovery. Details on the steps to take can be found on eHow.
Malware and virus can infect all kinds of files.
Formating will totally wipe the partition while Recovery will restore your computer to a earlier state, for example Factory Settings. If one format the partition with the Recovery files one will need a bootable Windows 7 DVD or USB stick to install Windows 7 again.
The Ghetto Media Files are the trash files that help with viruses. They are like an open gate to a virus. They are bad but if you do not have them, your computer would shut down by itself. They are there for a reason and if you download files to them a virus will attach to your computer. Some Viruses are The Ropetelka Virus, The Kindle Yah Vrius, The Ponderwonder Virus, The Opalgogue Virus, The Fish n' Hook Virus, The Yankee Rock Virus, and The Google Informat Virus.
The best option would be to go into your system options and restore your system to the factory default. This will wipe all the files off your computer, but is necessary to erase all the hidden files a trojan virus created.
A virus.
Best Spyware Scanner can help you wipe out this virus easily.
You can check your recycle bin if deleted files are still there but if your files are permanently deleted then you should go for a recovery service. I have tried Stellar data recovery service to get my important files. You can go for it too.
One product for removing a virus from an external hard drive is Malwarebytes Antimalware. Once the virus is removed, the files should reappear.