Any suggestions how can I make
pagefile.sys contiguous and move it to the beginning of the disk? Much appreciated.
I use Windows 7 64-bit edition.
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If you want your swap file to truly be at the front of the drive use partitioning software, like gparted, to shrink your C: drive and create a partition, d: for example, and place the swap file there. If you are doing this to get better peformance you are better off getting a second, smaller hard drive or ssd, and dedicating it to only the swap file.
A simple solution (which won't move the pagefile to the beginning of the disk) is to disable virtual memory, then reboot and finally re-enable pagefile (this time with a fixed size).
This method will ensure your new pagefile is in one "chunk" on your disk and will also prevent any future fragmentation of the pagefile.
Moving it to the beginning of the disk is relatively pointless nowadays, but for defragmenting it you can use PageDefrag. Note that fragmented files are not an issue on SSDs.
There is a useful piece of software from Iobit called 'smart defrag' that will de-fragment files such as the page file for you on boot through 'Boot Time Disk Defrag'.
Smart Defrag come with a lot of additional software. Bloatware. I would recommend Defraggler. It's small and fast and also has boot time defrag option. It display drive map and visualize what's being done (read, write) as it go with defragmentation (normal not boot time). At boot time it give you a textual output. Defraggler is free but has paid version with commercial support if you'd like. I use free one as it just is all I need.