Windows 2008: A Large Paging File Leaves Little Free Space on C:
Symptom and scope
The source describes a Windows 2008 system whose C: drive has little free space shortly after installation, despite a capacity of more than 100 GB. Its Computer view shows the system volume nearly full:
Cause in the source case
After displaying hidden and protected system files, the source identifies C:\pagefile.sys as occupying much of the system volume. This file backs paging and is not an ordinary file to remove manually. The source attributes its large size to automatic page-file management and notes that it is roughly comparable to installed RAM in this case.
A paging file is not always sized to a fixed multiple of RAM. Microsoft’s English guidance explains that sizing depends on workload commit requirements and crash-dump requirements. That guidance supports the sizing principle; its current Windows examples are not a replacement for the legacy interface shown here.
Open the virtual-memory settings
Open Computer → Properties → Advanced system settings. On the Advanced tab, choose Settings under Performance. In Performance Options, open Advanced, then click Change under Virtual memory:
The source Performance Options screen reports a total paging file size of 196575 MB. Its Background services processor-scheduling selection is a separate setting; changing it is not part of the paging-file procedure.
Review the proposed manual adjustment
To apply an appropriately planned custom size, clear Automatically manage paging file size for all drives, select the intended drive, choose Custom size and enter initial and maximum sizes suitable for that system. Click Set, confirm the dialogs and restart as required for the change to take effect. Preserve sufficient commit capacity and the required crash-dump support when choosing the values.
The dialog shows Space available 202719 MB, Minimum allowed 16 MB, Recommended 294862 MB and Currently allocated 196575 MB. These are the source dialog’s displayed values, not custom sizes recommended for another server. They need not describe the exact same moment as the initial disk-usage picture. The source supplies no custom initial/maximum numbers and no post-restart free-space result, so no completed adjustment is claimed.