It’s even possible to restore the previous Windows installation, but that’s complicated and potentially messy. To restore data from the folder, you can either access it and extract files manually or you can run the Recover personal files tool.When the option Apply repairs automatically is checked (default setting), personal files from the folder, including any Users folders and Documents and Settings, will automatically be copied back to their original locations.You may save Gigabytes of hard disk space after upgrading a Windows PC to the Windows 10 Creators Update by running the Disk Cleanup Tool.

Once the scan is completed there are two main entries to look for. You will be prompted and warned that there is no turning back but you are ready to commit to Windows 10 anyway so click to confirm that.

The system will go through the cleanup process and you will regain that disk space.

The elevated version of Disk Cleanup supports the removal of old versions of Windows, and this is exactly what you may want to do after making sure that the new Windows 10 Creators Update version installed fine on the PC.

I suggest you wait at least a couple of days before you run Disk Cleanup.

Tip: Find out how to speed up the loading of the full Disk Cleanup interface on Windows 10, or by using a command.

Disk Cleanup is a built-in tool of Windows that enables you to remove -- mostly -- temporary files or logs on the system.One of Windows' biggest flaws could be your rescue, should you ever accidentally delete an important file: The Windows file system does not actually delete files.Until they are overwritten, deleted files can be restored. Since is a complete backup of your system and user data, it comes to at least 3GB, plus anything you installed or stored under your user profile on top of that.At first I tried to run cleanmgr as a regular user, and it didn't list Windows installation files and Windows previous version files as options for clean-up.I just checked my folder, and it appears that it's a copy of the structure of the root of the drive.) on my system drive after the recent major Windows 10 update.