1. Is the SSD at least as large as the old HDD in total size? If not, you will typically get an error when attempting to clone a larger drive to a smaller one, but not always. If the SSD is smaller and you managed to clone it, or at least didn't get an error, that can cause problems.
I've ran into this myself, that why prior to cloning, will always reduce the size of the 'C' drive as much as possible, after running a defrag pass to help make more space. One can open the Control Panel & type in Create and Format disk partitions, and be able to shrink the drive.
If that doesn't provide enough space, after reboot, download a copy of the Mini Tool Partition Wizard ISO, or if you have this type of media already, use that to further shrink as needed. One good thing about Mint Tool's free offering, one can also align the partitions prior to clone. The ISO to burn to CD is the 5th product down the list on their site.
A couple of last things, you should disable hibernation, which is recommended for SSD's anyway, which also gains some space. And move your downloads, photos, video collection & other space hoggers onto a HDD to save more space. If you're going to have lots of data stored on the SSD, a larger size than you purchased may be needed. I just have these items to download to a HDD, creating most of the same folders on the data drive, and be sure once setup, to point any downloads to the HDD, rather than the SSD.
Having the specs of your computer will allow us to better serve you, there's a no cost app in Speccy where you can post a snapshot so that we can see what you have. The information that you'll see, such as your Windows COA, IP address & personal information won't be seen on our end. Just click the 'File' tab on the upper left corner, and you'll see the option to publish a snapshot. This link is the Portable version, which can be stored & ran from a USB stick if desired.
Good Luck with your SSD upgrade, once successfully installed, you'll never want to use a HDD for a boot drive again.