Piriform is a very famous software company which produces simple and great freewares.At present there are four piriform products namely Ccleaner, Defraggler, Recuva and Speccy.I have used all the four in my system and these software's are simply amazing.The user interface is so simple in design that there will be no difficulty in understanding the working of the software.Also the work done is very effective and useful.You can download all the four software from their official website http://www.piriform.com or from the freeware site called filehippo.com.The link is given with each section.Now lets see each one in detail.

1.CCLEANER

This is one of the most useful freeware available.Using ccleaner you can delete all the unwanted offline and online data like history,cookies,Temporary Internet files etc..The list is so big that it covers almost everything of these types.You can clean all browser related temporary storage files, unwanted temporary system files, Windows explorer files, Application files like adobe files, unwanted multimedia files like that of flash player and many more just in a click of one button.Yes.Just by clicking ‘Run Cleaner’ all these files are removed within seconds.In case you need history files or any other feature you can un check it in the main window itself.In the latest version of ccleaner, there is an option called “Wipe Free Space”.If you check this option, the cleaning will take some time as some long process is being carried out.So it is better to keep it unchecked for normal use.A message telling the same will appear when you check this option.

Though cleaning is the main job of this software, you have some extra features too.In left side of the window there is an option called Registry.This is actually a simple registry cleaner.Whenever you uninstall any software, usually registry entry will not be erased.With help of this feature you can actually erase the unwanted registry entry with a click of button.In the registry option you can see a button called ‘Scan for issues’.When you click it, the software will search for unwanted registry entry and list it in the window.After it is complete, you can click on the button ‘Fix Selected issues’.In the window that appears click ‘Fix All selected issues’ and click OK.Now the entries will be erased in seconds.There are many uses of this feature.A clean registry ensures smooth functioning of the system.Also you can reuse some trial version of softwares if the entries are erased!.

The next feature is called Tools.In tools you can get 3 options, namely Uninstall, Startup and Restore.They do the actions indicated by their names.It is very easy to operate and set the preference using ccleaner when compared to the original windows software for the same.For example.You can get all the startup files in the Startup menu and you can simply disable or enable it with one click.Similarly with the case of other two options.Now the last button on the left panel is called Options.Its  about the settings of the ccleaner itself and you can very well understand it by reading the options.In my opinion cclearner is a must have freeware.Also some features get added with every new version of the software.

You can download any version of ccleaner from this link ccleaner

2.DEFRAGGLER

Defraggler is a simple software designed for de-fragmentation.De-fragmentation is the process which help to make the memory of computer compact and in order and as a result the speed of the computer will increase.There is an inbuilt de-fragmentation software in windows but this one is much easy and effective.You just have to select the drive and click defrag.The software will easily do it.But remember, de-fragmentation is a time taking process and time depends on the memory fragmentation.So it is better to initiate de-fragmentation and switch off the monitor.

You can download any version of defraggler from this link defraggler

3.RECUVA

Recuva is a file recovery software.If you have accidentally deleted a file from your system and if it is lost from the recycling bin also, you can recover the lost file by using this software.In the window of recuva give the file name and the drive in which it was located during deletion.In case you don't remember the name, just select the drive.Click Scan.A list of deleted files will come.Look for your file.If the round in the side of file name is green, the chance for successful recovery is more.Check the box of your file and click Recover.Now you have to give the location for file recovery.It will be good if the new location is different from the drive it was deleted.The best option will be a portable drive or any other partition.The software works great if the file is of small size and if it is recovered early after deletion.

You can download any version of recuva from this link recuva

4.SPECCY

Speccy is a very simple software which gives a complete information about your system.From the operating system you use to the current temperature of the hard drive, all the basic information about your system is displayed.At present it is available in beta version.

You can download any version of speccy from this link speccy

So these four are very useful and simple software and must have for computers.You can give your comments after using these softwares.