What is qsearch.exe?

It's not really known what exactly qsearch.exe is, but there are some indications that it may be some sort of malware.

Although its not a definitive answer. There are some indications that it may be malware of some sort, so I'd certainly stay up to date on virus and spyware scanning.

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How to save your PC from threat of viruses ?

* DOWNLOAD FREE ANTIVIRUS NOW.
It is if you don't want to shell out anything from your pocket.
There millions of antivirus programs and from my personal experience only few of them are compatible to remove most dangerous of viruses.

* Never open email attachments that you are uncertain of.

* If you do not use Visual Basic scripting, you should turn this off.

* Take care while using external drives (eg pen drive), which has earlier been use in unprotected computer ( cyber cafe).

* Be wary of pirated softwares and CDs.

* Take special care while dealing with .exe files.

* Some viruses are triggered by certain event, that event may be certain time or when external drive is inserted. so be cautious.

How do i know my computer is infected with virus

Generally when computer starts taking longer than usual to load some application you get a feeling that computer is infected by some unwanted code. But it is not at all necessary that these problems are due to virus as these may be some software or hardware problem so check them.

So now how to ascertain problem is due to virus. Few signs that may help are:-

* When you click on any of the local drives they show Open With window.
* You observe certain file changing its size in seconds from small to big and back.
* Unusual error messages.
* Operating system slows down.
* Disk space 'vanishes'.
* large number of unknown .exe files in principle drive (usually in C:).