yours is on the default I mentioned: 8-9GIG for 64GIG RAM users and Syarasd got a higher value of 65GIG pagefile because the “(full) memory dump” creation was enabled.
If you have enabled “kernel dump” creation you got the 800MB minimum warning , because this amount of pagefile is then necessary. If you have only the “small dump (256k)” (mindump) enabled, the minimum warning is about 1MB.
Its only the order of the two posts from @Syarasd which is a bit misleading.
PS: and the most important info was in the topic was again: never disable the windows virtual memory completely 