It seems to want to take more than a day to delete 9.14GB and I still have another 48 GB to go, and for the past hour it has been on 0% complete. To get to the deleting stage I had to wait all day to get through the calculating stage.

My system is new and high spec. See below. Any suggestions on how I can speed this up? If I can't I suspect I will need to look for a different solution and would like to know how to get a refund. Thanks
OS Name Microsoft Windows 10 Home
Version 10.0.17134 Build 17134
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-08HIJMN
System Manufacturer LENOVO
System Model 80Y8
System Type x64-based PC
System SKU LENOVO_MT_80Y8_BU_idea_FM_YOGA 920-13IKB Glass
Processor Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz, 1992 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date LENOVO 5NCN38WW, 22/02/2018
SMBIOS Version 3.0
Embedded Controller Version 1.37
BIOS Mode UEFI
BaseBoard Manufacturer LENOVO
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.17134.1"
User Name DESKTOP-08HIJMN\Justi
Time Zone SA Pacific Standard Time
Installed Physical Memory (RAM) 16.0 GB
Total Physical Memory 15.8 GB
Available Physical Memory 9.07 GB
Total Virtual Memory 42.7 GB
Available Virtual Memory 24.0 GB
Page File Space 26.9 GB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Not enabled
Device Encryption Support Elevation Required to View
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware No
Hyper-V - Data Execution Protection Yes