I had recently recommended two very good 3rd party defrag. programs in a thread on defraging
HERE
I agree with the posters in this thread about defraggler but it is slow and not suitable for large fragmentation such as what occurs with the installation of large AAA PC games.
Auslogics is the best program for that task:
"Why not use a 3rd party disk defrag utility?
The W7 disk defrag. is so slow and poorly designed anyway.
There are free versions available of well respected "defraggler" and "Auslogics", both of which leaves the basic W7 defrag. for dead. For a fast defrag. use the latter and for a slower defrag that organises your files for better use, the former. I use both as Auslogics is handy for defraging after installing large games (4 to 6GB) in a short time" .
Back on topic though:
As for setting a custom volume size for your paging file, if you read Mark Russinovich’s technical description of how it works, you would know that "system managed size" has a size set already by that feature's code writer, unless Mark Russinovich
is wrong when he explained:
"On Windows Vista and Server 2008, the minimum is intended to be large enough to hold a kernel-memory crash dump and is RAM plus 300MB or 1GB, whichever is larger. The maximum is either three times the size of RAM or 4GB, whichever is larger. That explains why the peak commit on my 8GB 64-bit system that’s visible in one of the screenshots is 32GB. I guess whoever wrote that code got their guidance from one of those magazines I mentioned!"
For W7 in brief:
min size = RAM + 300mb = 3372mb (for 4GB of ram)
Max size = RAM x 3 = 9216mb (for 4GB of ram)
As you have W7x64 and 4GB of ram (like this writer), your safe to leave the paging file on "system managed size" and forget about it. For general computing, your paging file will not be expanding and contracting at all.
I run Photoshop and play AAA PC games and have no problems with fragmentation due to paging file size (the size never changes from the min.), or anything else to do with the paging file's "system managed size".
If your running a ram intensive video editing program or anything else requiring lots of ram, you need more ram not a larger paging file.