Computer will be much faster and more reliable with an SSD.
However, everyone knows that SSD is much more expensive than HDD. Therefore, in common
situations, most users will choose as small SSD as possible when it can satisfy their
needs. Using small size SSD means you may find the space is not enough sooner or later.
You can take full advantage of disk space by wiping ssd (learn SSD erase),
optimizing SSD (learn SSD optimization), or using following ways
to free up more space. Note that sometimes deleting files doesn’t mean wipe it
completely. Trim for SSDmay help you wipe data thoroughly.
Common Ways to Free Up Disk Space in SSD
Free up space in SSD will increase its reading and writing speed in a way, so as to
HDD (learn difference on SSD vs HDD write speed). Many users
may have thought what does occupy so much storage space on earth on SSD? In
fact, many users don’t find much space after installing operating system. Much space
had taken up by many different functions which may not be necessary for you to use.
Following are the solutions that you can use to free up SSD disk space.
Turn off Windows Driver and System Restore
For the users who are extremely satisfied with their operating system and other more
advanced features, you can access into system properties to disable the percent of
space. The space is used by system to track the installation of programs, drivers,
or updates which are usually used to help system recovery. The default setting for
this space is 5% of operating system. It is possible for you to disable it
completely but in order to avoid you removing a program or upgrading something, Safe
Mode is a way for you to make sure things goes smoothly.

The default of recycle bin is 10% of your drive. You can change it into the size you
need by entering the properties of the recycle bin. This can help you free up some
storage space especially for small SSD drives such as 120GB. Furthermore, if you
have full confidence, you can reset it into zero. However, if you are a user who
thinks the recycle bin is essential for you the method may not suit for you.

Hibernation is designed to save power for computers when you don’t use your computer
in a period time. The amount of disk space for hibernation should equal to the
memory which is installed on system. For instance, if you have a 20GB memory,
hibernation also takes up 20GB. If you have larger memory such as 64GB, hibernation
is 64GB too, which will have effect on your free space. So when you use SSD, you
should think twice before you use it.
You want to have fast speed on your computer but SSD is expensive. Besides, the
larger size you need, the more you will cost. In order to solve this problem, you
can only migrate your OS to SSD, and put other files on HDD, which will help you
free up a lot of SSD disk space.
Free third-party software AOMEI Partition Assistant is specialized in partition
management can help you migrate OS to SSD without losing any data.
Before you do:
Make sure your destination SSD has an unallocated space which is equal to or
larger than the used space of current OS partition.
If you would like to migrate OS from MBR disk to GPT disk, make sure your
motherboard supports EFI or UEFI boot.
Step1: Download, install and
launch the software. Click "Migrate OS to SSD or HDD" on the left side.
And then click "Next" in the pop-window.

Step2: In the next window, choose an unallocated space on SSD as
destination place, and then click "Next".

Step3: In the window, you can left move the bar to decide the size
of new partition on SSD and then click "Next"

Step4: click "Finish" to read the note about "Boot
Operating System". And then you will return the main interface.

Step5: if you want to perform this operation, please click "Apply"

Note:
If the operation involves the system partition, the operation will be completed
under the PreOS Mode.
If you migrate OS between MBR and GPT disks, please enter BIOS and change boot
setting (about boot setting, please check your motherboard computer manual) when
OS migration is completed.
If there is no unallocated space on the destination disk, you can delete
useless partition or shrink a large partition to generate some unallocated
space.
All above methods are the remedial actions after your SSD is full. However, you can
do something like read What size of SSD should I get ahead of
time to avoid purchasing inappropriate SSD.
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