You're not going to be able to delete unless you A.)mount up the vmdk to another machine or B.)boot into WinPE or recovery mode. Documentation says to set it to the size larger then the VM memory. I set it to the right size and left it on the parent.
Ok thanks, it doesn't look an easy process. Our parent machine is modified every 2 weeks, so I prefer losing 16 GB on datastore rather than deleting the file manually before everey recompose.
Let me know if below solution works
Change the pagefile setting. Minimum 2 GB (or more, as per you usage) to Max 16 GB. If your page file is not used much used then the pagefile.sys file size will not grow more then your minimum GB you configured.