The first thing when trying to free up space is to check out what all you can get rid of. The disk cleanup program will then start analyzing different folders and types of files that it thinks is safe to delete.The disk cleanup software analyses and then allows you to choose what to get rid of. You will be asked which drive you want to clean up. When the analyzing is done, you will be presented with a window similar to the following – it lists what all is removable without causing problems to the operating system or installed applications.RECOMMENDED: Click here to fix Windows errors and optimize system performance Here is something you need to know before you continue.If you disable thumbnail previews, file previews will no longer shown in the preview pane.Disk Cleanup's new feature called Windows Update Cleanup is standard in Windows 8 and Windows 8.1 and was added to Windows 7 by an update that was made available in October 2013.The Windows Update Cleanup feature is designed to help you to regain valuable hard disk space by removing bits and pieces of old Windows updates that are no longer needed.I'll take a closer look at the Disk Cleanup tool and then focus on the new Windows Update Cleanup feature.
To speed up this process, it uses a cache file hidden in the user profile directory.When a file is cached, File Explorer reuses the thumbnail from the cache to show it instantly.You might want to disable thumbnail previews in File Explorer if they are affecting performance in folders with large number of items.RECOMMENDED: Click here to fix Windows errors and optimize system performance Thankfully, in Windows 10 there is a built-in ability to clean up the thumbnail cache.Once you do that, the broken cache will be removed.Junk files are files that remain on your computer after a task has been performed.Sometimes, Windows or some program needs to create temporary files while doing some task and then forgets to delete the temporary files it created.If the cached file is damaged or corrupted, File Explorer starts showing broken or mismatched thumbnails for your files.Here is how to repair the thumbnail cache in Windows 10.It also tells you what you can keep and what to remove and why.You will find the Disk Cleanup Tool under Start Windows Administrative Tools.For the most part, the items in Disk Cleanup is safe to delete.But, if your computer isn’t running properly, deleting some of these things may prevent you from uninstalling updates, rolling back your operating system, or just troubleshooting a problem, so they’re handy to keep around if you have the space.Note: Disk Cleanup and the Windows Update Cleanup feature works the same in Windows 7, Windows 8, and Windows 8.1.