Hi and welcome to the Qubes community user1-NY! 
Sorry nobody answered you yet.
Did you manage to fix your problem?
I can’t really help you troubleshoot since I’m not advanced enough.
But did you check your system requirements and switch on your virtualization in the bios?
Minimum system requirements Qubes OS
(System requirements — Qubes OS Documentation)
- CPU: 64-bit Intel or AMD processor (also known as
x86_64,x64, andAMD64)- Intel VT-x with EPT or AMD-V with RVI
- Intel VT-d or AMD-Vi (also known as AMD IOMMU)
- Memory: 6 GB RAM
- Storage: 32 GB free space
OR IOMMU-related issues??
Dom0 Kernels currently included in Qubes have issues related to VT-d (IOMMU) and some versions of the integrated Intel Graphics Chip. Depending on the specific hardware / software combination the issues are quite wide ranging, from apparently harmless log errors, to VM window refresh issues, to complete screen corruption and crashes rendering the machine unusable with Qubes.
Such issues have been reported on at least the following machines:
- HP Elitebook 2540p
- Lenovo x201
- Lenovo x220
- Thinkpad T410
- Thinkpad T450s
Log errors only on :
- Librem 13v1
- Librem 15v2
The installer for Qubes 4.0 final has been updated to disable IOMMU for the integrated intel graphics by default. However, users of 3.2 may experience issues on install or on kernel upgrades to versions higher than 3.18.x.
The above information can be found in this post: