7
I have noticed that the slowest drive in my system is used most during an msi installation. I mainly notice this when running windows updates but it seems to be msi installs in general.
The setup I last saw this occur on was running Windows 7 with the following drives:
Sata:
240GB SSD NTFS ~515MB/s Operating system drive
1TB NTFS ~110MB/s
Firewire:
4TB ExFAT ~80MB/s
I would think that windows would choose the fastest drive with available space for temporary files. But it will instead choose the external drive with the slowest transfer speed. I could also understand choosing the 1TB for not being an ssd in an attempt to preserve the longevity of the ssd write capacity. Why does this happen? Is there a way to force these installations to use the OS drive or a specific drive?
2Windows uses your system drive unless you change the locations of your temporary files. – Tamara Wijsman – 2012-06-25T00:31:58.727
4I think windows choose the drive with more free space independently of anything else. Can you confirm the 1TB drive is the one with more free space available? – fmanco – 2012-06-25T01:56:15.690
@TomWijsman: The temporary file locations have not been changed. In this case it was running windows updates on a fresh install. – Joshua C – 2012-06-25T13:16:10.793
@criziot: That is correct, the external has the largest amount of space. – Joshua C – 2012-06-25T13:16:23.617