You can toggle hidden files and folders in Windows Explorer (WIN+E) from Tools > Folder Options > View (Tab) Note: Some of these folders may be hidden by default. %WINDIR%\PREFETCH (that is, C:\Windows\Prefetch).%TEMP% (that is, C:\Users\ username\Appdata\Local\Temp).But typically, you can safely delete all the files in the following locations (if they exist): The locations of temporary files vary for each computer. You may have multiple gigabytes of unnecessary data taking up space in your Windows system and User profile. The most effective way to clear space is to delete all temporary files not being used by Windows. Windows has a built-in Disk Cleanup utility that can be used. Run the Disk Cleanup tool from Start > All Programs > Accessories > System Tools > Disk Cleanup.
We recommend using one or all the following procedures to help with freeing space in the system drive. This can be accomplished by changing multiple system settings and moving the locations of temporary folders. To get around the space limitation on the system drive to complete the Autodesk installation, there is a need to clear space on that drive. Note: Some of these procedures require having local Administrator privileges on the machine. Contact the system administrator to perform these steps.