Sometimes, when you plug a USB stick and delete them again, it will not respond well to commands you give in your system. You may get an error eject usb drive sepertiwrite protected - can not remove the usb drive. Here a nice tool that allows you to amanSafety Remove the USB drive from a PC with USB Disk Ejector.
USB Disk Ejector is a simple tool that allows you to remove your usb drive safely from your computer without much effort and you can avoid some errors that do not want USB Disk Ejector support all USB devices.
Direct Download and extract your run more powerful program requires no installation and it will automatically recognize all devices connected, double click to disable the USB one that you want to Safety Remove USB drive from a PC.
http://quick.mixnmojo.com/downloads?download=USBDiskEjector1.1.2.zip
Your computer is infected with malicious software? Do you have popups on your PC?
According to the interpretation of Wikipedia:
Software is considered malware based on the perceived intent of the creator rather than any particular features. Malware includes computer Viruses, worms, trojan horses, spyware, dishonest adware, crimeware, most rootkits, and other malicious and unwanted software.
Download FREE latest version software Malwarebytes Anti-Malware
After install, run this software.
There are 3 choices of scan . I recommend run "Perform quick scan" first.
Then run to "Perform full scan".
This software will detect if there is any form of malware.
If the scan is finished, will be out page list of successful malware is detected. Click on "Show Result".
Since malware is largely disrupt the windows file,
we had to reboot our pc or laptop is as suggested by this software . Click "Yes"
Do not forget to update this software.
Click the tab "Updates" and click on "Check for Updates" ( free update )
Good luck and keep your pc / laptop / hosting you from malware attacks.