China DOS Union

On a school computer without a restore card, I used PQ to partition. But after execution and restarting, it was still the same as before. I hope someone can detail what was done to the computer. Also, there are two partitions C and D on the computer. But whether in normal WINDOWS mode or WINPE, I can't open drive D, showing access denied. But the partition software clearly has this partition and it's normal. Please explain the principles of these two phenomena.

No installed restore card, did you install restore software? Did your partitioning process report an error?

Check if there is a bad sector on drive D? Or partition table error? Or NTFS partition permissions set?

Also, I don't know how the owner's problem is related to DOS?

Sorry, I just think that the usage issues of DOS software should also fall under DOS.

Is it that software like Founder ABS has hidden partitions?

It is very likely caused by a fatal bug of PQ. It is strongly recommended not to use PQ because the partitions created by PQ are different in format from those created by many partition software, and there are fatal defects.

Isn't it that serious as you said? I've been using PQ to partition hard drives for many years, and I haven't found any serious bugs in the partitions it creates. I just found that for some non - standard partitions, Error 106 will be displayed in PQ, and then partitioning can't be done, but there's no problem with other partitioning software. This can only show that it has relatively strict requirements for the partition table.

Originally posted by Climbing at 2008-12-17 22:22:
Isn't it that serious? I've been using PQ to partition hard drives for many years, and I haven't found any serious bugs in the partitions it creates. Just found that for some non-standard partitions, PQ will display Error 106, and then...

That's not because the partitions are non-standard, but because PQ has a misrecognition of partition entries larger than 8G. There are two major bugs in PQ:
1. For partition entries larger than 8G and the partition entries after 8G, the partition software will fill specific values like FFFFFEH in the original end CHS (the start CHS after 8G is also filled with a fixed value, I don't quite remember the specific number. If this value is changed, it can also cause a similar logical lock). It directly uses the subsequent fields to locate, but PQ doesn't recognize this and always changes others' correct ones to wrong ones. (Originally I thought it was a problem with other partition software, but after comparison and analysis, the problem is with PQ)
***Using the original CHS fields, a total of 3+3 bytes, that is, it can only represent partition sizes less than 8G and the positions of partitions before 8G. Now, for partitions larger than 8G and after 8G, the partition position and size are directly represented by the subsequent 4+4 bytes. The 4-byte maximum can represent 2T. The current partition table entries can only be used for partitions before 2T and less than 2T. So Windows and Linux have all adopted the new GPT partition architecture不约而同滴, and this architecture cannot be recognized by DOS!***
2. PQ cleverly uses non-integer multiple tracks to divide partitions, while ordinary partition software uses tracks as units to divide partitions. So the partitions divided by PQ have a risk of causing the subsequent partitions to be lost, and it is very difficult to recover with DISKGEN after being lost.
***PQ's ability to recognize multiple primary partitions is also not very good.
PS: You can use DiakPart to partition, and look at the partition table entries of partitions larger than 8G and after 8G, and you will find that in fact PQ changes others' correct ones to wrong ones.

[ Last edited by netwinxp on 2008-12-20 at 13:41 ]

What the person above said is well-founded.
Just personally, I've always only used PQ, and generally there are two primary partitions, used to install two independent versions of the system. There have been no accidents.

I can't understand the explanation and description of netwinxp, still don't get it.

netwinxp said it well, PQ does indeed arbitrarily correct the partition table.

But I also found that Windows Disk Management often divides partitions with non-integer multiple tracks.
I have also encountered situations where creating or deleting a logical partition in Disk Management causes subsequent partitions to be lost.

So what kind of partition software is the best?

I just think that the operation of PQ is very convenient, much more comfortable than DISKGEN.
In addition, no error messages appeared during partitioning, but after restarting, it is still the same as before, nothing has changed.
In addition, I used FDISK /MBR, after restarting and then partitioning (still PQ), it still has no effect.

[ Last edited by willing on 2008-12-21 at 15:11 ]

Then why do I still use PQ partition after so many years, including now, even for a 320G hard drive, why is there no problem? And the partitions divided by PQ also have no problems when viewed by other partition software, and of course including NT's disk manager. And generally, I will definitely divide out multiple primary partitions (at least two primary partitions plus an extended partition).

I have of course also used many partition software, but I feel that in terms of operation comfort and safety, PQ is the best. Of course, Acronis's Disk Director Suite is also good, but there are still defects.

Also, since PQ has serious bugs and disk manager partitioning also has problems, then what should be used for partitioning? The premise, of course, is to partition without losing data.

I also think that PQ is relatively easy to use and comfortable. The others are just tried and then given up.

Originally posted by Climbing at 2008-12-21 04:50 PM:
Then why do I still use PQ to partition after so many years, including now? Even with a 320G hard drive, why hasn't there been a problem? Also, the partitions divided by PQ have no problems when viewed with other partition software, when...

Now I generally use Paragon's Partition Manager and GParted. The former needs no introduction, everyone knows it. GParted is included in the Ubuntu CD, the most commonly used partition software under Linux, and it's free.

I have hardly used Acronis, so I can't comment.

[ Last edited by fujianabc on 2008-12-22 at 17:10 ]