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In normal PCs the Size of Windows Folder is 6 to 8 GB but in my Case its 25GB, How can i delete the unwanted files from Windows Folder which inturn optimise my C Drive size.

Thanks in Advance..

Mine is Windows 7 with 60 GB in C Drive in Which 59GB is occupied.. So i checked and found out this problem

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There are a lot of free windows 'file cleaners' out there that will tidy things up for you. I don't use them, so I cannot recommend one, but it should be free and open source if possible. The last thing you want is bloatware or spyware. – skub Jan 15 at 18:17
Get a bigger harddrive. – surfasb Jan 16 at 23:56
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3 Answers

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A large Windows folder is quite normal. The Windows folder may start out in the 6-8GB range bbut it will grow larger over time. This is normal behavior of Vista/7 and there isn't really much you can do about it.

The cause is winsxs, and the details are described in this blog-post.

For comparison my Windows folder is 29GB, a bit bigger than yours.

The recommendation of running Disk Cleanup in the other answer are worth a try, but I suspect winsxs is the main cause of your large Windows folder.

EDIT Filling in from the comments:

Another folder that can grow big is the Windows\Installer folder, a protected system folder that contains repair and uninstall information for the programs and updates you've installed. There used to be a program by Microsoft called miszap.exe that could clean out orphaned files from here, but there were issues and it is no longer supported.

The fact is that there really is no safe way to clean out stuff from the Windows folder beyond what Disk Cleanup can do. It is also quite normal for the Windows folder to grow over time as updates and programs get installed onto the system.

The one way to get the Windows folder back to a smaller size is to wipe the system and clean-install it from scratch. But even this is a temporary fix as the Windows folder will start to grow again over time.

To keep it from growing too much it is worth installing windows from media with the latest service pack installed and to be frugal in what programs are installed.

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my winsxs is just 5 GB – Kishore Jangid Jan 16 at 5:44
That is not as big as I expected. Another thing that can balloon over time is the windows\installer folder. How big is that one for you? – Mr Alpha Jan 16 at 12:32
i dont have such a folder in Windows Folder – Kishore Jangid Jan 16 at 12:53
It is a protected system folder and won't show up by default. You need to disable Hide Protected Operating System Files in Folder Options. Truthfully the easiest solution might be to run WinDirStat, and see what it reports. – Mr Alpha Jan 16 at 13:00
Its 9.36GB... Can i remove that – Kishore Jangid Jan 16 at 13:11
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Try CCleaner:

http://www.piriform.com/ccleaner

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I would start with Control Panel | Performance Information and Tools | Open Disk Cleanup

This will list several categories of possibly unwanted files to clean up, some of which are under the Windows folder.

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