That will free up plenty of space for installing and running Windows 10. That way you can remove all of the programs and user files from the existing SSD and place them on the secondary drive. However, if you have less than 42GB available I suggest adding a second drive to your system. If you currently have 42GB or more of free space on your drive and you don’t plan to add additional programs or files, you should be just fine upgrading to Windows 10 without deleting anything or making any hardware changes. Therefore, I recommend leaving at least 10GB of free space on your 128GB drive (or even more if possible). Filling an SSD up to the brim with installed programs and files will degrade system performance quite a bit. In order to operate efficiently, SSDs need a little “breathing room”. However, the above being said, you could easily run into problems if your SSD is already close to being filled to the max. According to Microsoft’s official list of hardware requirements for Windows 10 it only requires about 32GB of storage space even for the 64 bit version of that operating system.Īdmittedly, Microsoft’s 32GB number is the bare minimum for running Windows 10, but I have it running on a 120GB SSD in one of my work computers and it performs flawlessly. Rick’s answer: Windows 10 will easily fit on a 128GB SSD, Joseph.

Will I need to replace the existing SSD with a bigger one before installing Windows 10? I’d now like to replace the Windows 7 with Windows 10, but I’ve heard that a 128GB drive isn’t big enough to hold Windows 10. The hard drive began acting up a while back so I replaced it with a 128GB SSD. Question from Joseph: I have a 2009 era Dell desktop that’s running Windows 7. Note: The links in this post are affiliate links.

How many gigs windows 10