Why is there less than 30G in computers???

That should be the manufacturer hiding a part of the space, which is a backup of the system. You can use some tool disks to check before you enter the system. You can use PQ and other sub-drive tools to check it out.

Find a system installation disk with PM boot.

After booting, check the hard drive for bad sectors.

Then enter the partition magician interface.

Delete all partitions.

Then create a new partition.

Select the boot partition option.

Fill in a suitable capacity.

Select the Logical Partition option later.

Then fill in the capacity one by one.

After saving, perform a final reboot.

If the manufacturer installs it"One-click restore"will automatically divide a part of the disk into hidden partitions to save system backups, if you don't need it, you can use partition software to try to redivide it.

The best way is to let the merchant get it for you, and if you spend all the money, don't call them?

It is recommended to use the DOS version of PQ to take a look, theoretically it is possible to find the 30G, and then use PQ to repartition.

It's possible that there are 30g, but you don't see it.

Run to view disk usage, hide space and use space at a glance.

Isn't that your Vista system!! More the same as mine!! You must know that the whole system is very large, and the 5G one is just for one-click restoration!!

The space is not allocated after the reload!!

It's much more refreshing to set it up!

<> this problem, it is estimated that it is caused by the operating system, the memory limit limit, you can open any let Bi Chunwu Manager see how big the physical memory is Start - msconfig - boot - advanced options.

or driver problems, the general discrete graphics card does not occupy memory, the system may not have been restarted, right-click to start, run, enter:

systeminfo

Check the boot time, if it was a few days ago, it is recommended to repeat the liquid start, or Tanner to cancel the rapid shutdown technology.

Turn off the computer, disconnect the power, open the case, remove the memory module, and wipe the gold finger with an eraser. Install it back and turn it on to try the situation.

Plug the memory module back in and wipe it with an eraser.

There are two reasons for this:

g memory, it must be two memory. There may be a 2G memory module that is not plugged in, only 1G can be used, if there are multiple memory sticks, one of them is not plugged in will not be alarmed, so the user does not know. The motherboard alarm, it will be reported if the memory cannot be found, as long as there is a memory that can be used, it will not be alarmed.

2. The memory is set to a limit size. Click Start, Run, enter msconfig enter, then select Boot, Advanced Options, and then set it as shown below, remove the tick of the maximum memory, and restart.

Based on the information you provided, you can see that your computer has two memory sticks.

Elimination method, remove 1g and leave 2g to see if it is normal! Normal is fine. The abnormal estimate is broken!