desktop pc processor

I am a win7 64-bit operating system, Dell notebook PC.Yesterday in the classroom to write a program, suddenly appear on the desktop this computer is being attacked window, as shown below. Every half minute or so appears on the computer desktop to turn two laps.And since the virus, the computer running speed has become very slow, with the online solution, no effect, almost to reload the system. Open Task Exp

Life everywhere and all the pit, he passed, so write down.Mac shared files, Win7 access:1. System Preferences-Share-check the line. It is generally said.2. System Preferences-users and groups-unlock-guest users-allow guest users to connect to shared folders.This can be in the Win7 network to see the Mac computer, but not their own user name, but a number, fortunately only one of my, I opened the input of their own user name password on the line.Win7 shared files, Mac access:1, the file to share,

Today desktop computer front panel headphone hole no sound, rear headphone jack has sound, but plugged in the back of the headphone hole, also plug the headphone hole, two headphones have sound, so not the problem of the headphone hole,Open the small speaker in the lower right corner of the computer "Realtek High Definition Audio manager";Click the Settings button in the upper right corner;Select AC97 Front Panel;