When installing the OS Windows is necessary at the outset to allocate enough space for the system drive.
By default, all programs are installed it on drive C: As a result of the free space on the system drive will steadily decline, which may lead to inability to work on the computer.
Move the paging file
The paging file - space on the hard disk whereinformation processing system places the results in order to free memory. By default, this file is located on drive C. Right-click on the icon "My Computer" and select the command "Properties". Go to the tab "Advanced" and in the "Performance" section, click "Options." Again, select "Advanced" and in the "Virtual Memory" section, click "Edit". Note the C drive and turn on the "No paging file." Click "Set", and then click OK.
Select the disk D, turn on the "Custom size" andspecify the minimum and maximum page file size. Lower size should be at least 1.5 times larger than the RAM capacity. Click "Set" and OK, then you are prompted to restart your computer.
Note the item "recommended" in the "Total paging file size ..."
Resize drive C:
In Windows versions of Vista and above question is easysolved by standard means. The truth may be required to conduct a pre-drive defragmentation D. Right-click on the icon "My Computer" and choose the command "Control". The Management Console snap-in, click the "Disk Management". A window opens state drives on your computer. Right-click on the D: drive and choose "Properties" from the context menu. Go to the tab "Tools" and click "Defragment." Click "Analysis" in the box "Disk Defragmenter." After processing the data, the system will display in graphical form information about the status of the disc. If you think that you want to defragment, click the appropriate button. This operation takes some time, depending on the amount of information on the disk, and its degree of fragmentation.
Again, right-click on the disk D: and choose the command "Shrink Volume ..." The new value, specify compression in the drop-down dialog box, and click "Shrink." After the operation is completed the system will display the new unallocated space. According to the developers, the shrink operation can not hurt or destroy on-disk information. However, for the sake of caution may be the most important data stored on removable media.
If the disk D is a swap file that can not be either compress or delete.
Right-click on the image of drive C: and choose the command "Extend Volume ..." In the "Expansion Wizard" click "Next". In the new window, select the unallocated space and select from the dropdown list size, which will increase the system drive. Click "Next" and "Finish".