Before starting, make sure that the OS HDD only contains the System Reserved partition and the OS partition. If it contains another partition, such as for data, this data must be moved off and the partition deleted. Once this is complete, the next task is to reduce the OS partition such that it fits well within the SSD capacity, as in the following procedure.
- Go into the start menu, right click on “Computer” and click “Manage”.
- Go into “Storage” -> “Disk Management” on the left.
- Right click on the OS partition (usually ‘C:’) and click “Shrink Volume”.
- Enter a value such that the “Total size after shrink in MB:” field is at least 10% lower than the capacity of the SSD, e.g. 50000MB for a 60GB SSD.
For a small SSD such as 80GB or lower, it may not be possible to shrink the OS partition small enough. For example, the following would be a problem for a 60GB SSD:
Once the partition is small enough, we should have something like the following:
If it is not possible to shrink the size enough, carry out the following tasks, otherwise carry on to the next page:
- Open an elevated command prompt, as follows: Go into Start -> All Programs -> Accessories, right-click on “Command Prompt”, click on “Run as administrator” and click ‘Yes’.
- Type in the following and press enter: powercfg -h off
- Close the command prompt.
Disable system restore:
- Go into start, right-click on “Computer” and click “Properties”
- Go into “System protection”
- Click on the OS drive (usually ‘C:’) and click “Configure…”
- Tick “Turn off system protection”, click ‘OK’ and click ‘Yes’.
Run a full defrafmentation with Defraggler (link) or any defragger tool that consolidates the space. Defraggler is a freeware tool which consolidates the data during its defragmentation process, leaving the free space at the end of the drive. This is necessary to be able to be able to shrink the partition further. The Windows own defragger does not usually consolidate all the data.
The following shows an example of data at the end of the partition that was preventing our partition from being shrunk below 72,351MB:
After the defragmentation on our example, we were able to shrink the partition much further. There is no need to shrink it down to the following, but just enough so that it is well within the new SSD’s capacity:
Now try shrinking the OS partition again. Once the partition has been shrunk enough, repeat the above steps for Disable hibernation/system restore to undo these changes. For hibernation, type in “powercfg -h on” instead of the above to turn on hibernation and tick “Restore system settings…” for the restore option to enable system restore.