I have a virtualbox 5.1.30 and I have vagrant 2.0.1 and I have this error after doing a vagrant up --provider=virtualbox:
C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/machine.rb:333:in `unlink': Permission denied @ unlink_internal - C:/Users/Carlos/Desktop/Vagrant_base/.vagrant/machines/default/virtualbox/id (Errno::EACCES)
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/machine.rb:333:in `delete'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/machine.rb:333:in `id='
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/machine.rb:146:in `initialize'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/vagrantfile.rb:79:in `new'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/vagrantfile.rb:79:in `machine'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/environment.rb:733:in `machine'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/plugin/v2/command.rb:180:in `block in with_target_vms'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/plugin/v2/command.rb:204:in `block in with_target_vms'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/plugin/v2/command.rb:186:in `each'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/plugin/v2/command.rb:186:in `with_target_vms'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/plugins/commands/up/command.rb:87:in `execute'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/cli.rb:42:in `execute'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/lib/vagrant/environment.rb:308:in `cli'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.1/bin/vagrant:138:in `<main>'