Tip & How-To about Computers & Internet

Hide Your HDD Partitions Hide your HDD partitions 1. Go to Start > run > type ?diskpart?. a dos window will appear with following like that DISKPART> 2. Then type ?list volume? without quote It will look like this. Volume### Ltr Label Fs Type Size Status Info ????? ?- ?? ? ?? ?- ??- ?? Volume 0 F CD-ROM Volume 1 C NTFS Partition 7000MB Healthy Volume 2 D soft NTFS Partition 8000MB Healthy Volume 3 E ?- NTFS Partition 8000MB Healthy 3. If u want to hide drive E then type ?select volume 3′ without quote then a message will appear in same winwods { Volume 3 is the selected volume} 4.now type ? remove letter E? without quote now a message will come { Diskpart Removed the Drive letter } sometime it requires the reboot the computer . Diskpart will remove the letter .Windows XP is not having capabilty to identify the unkown volume. Don?t afraid ur Data will ramin same . to Come back the Drive repeat the process . but in 4th step which is shown in this post replace ? remove? to ?assign? means type ? assign letter E? without quote The above method won?t work for the drive containing Operating System and it can also be done using System Manager>Storage Manager

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Acer eRecovery management Restore system to factor default but I don't know the password


Locate and Unhide Hidden Rescue Partition
  • 1 Access the Diskpart command prompt. Acer stores custom eRecovery passwords on your computer in PQService, a hidden rescue partition. Locating this partition requires accessing the Diskpart utility from the command prompt. Diskpart allows you to run a scan on your hard drive and bring up hidden partitions. To access Diskpart, go to Start and type "cmd" in the search bar to bring up the black command prompt box, and then type "diskpart" at the prompt to switch to a Diskpart prompt. Depending on your computer, a new command prompt may open with the Diskpart prompt.
  • 2 Scan your computer configuration. At the Diskpart prompt, type "rescan" to run a system configuration check. When the scan finishes, you will receive a message informing you the scan is complete. At the command prompt, type "list disks" to bring up available disks and then type "select disk 0."
  • 3 Locate the hidden partition. At the command prompt, type "list partition" to view a list of partitions on your disk. Locate the partition with no name and a size of approximately 10GB. At the command prompt, type "select partition (number)."
  • 4 Determine the partition type and unhide the partition. The hidden PQService partition will be either a type 27 or a type 12 partition. If the partition is type 27, unhide it by typing "set id=07 override," and if a type 12, then unhide it by typing "set id=0B" at the command prompt.
  • 5 View the PQService partition. Return to the disk containing PQService by typing "select disk 0" at the command prompt, and then type "list volume" to view the contents of the disk. PQService will be visible in the list, preceded by a number. Type "select volume (number)" and then assign PQService a new drive letter so you will be able to open and view it from your computer interface window. At the command prompt, type "assign letter=f."
Reset eRecovery Password
  • 1 Open PQService. Navigate to the drive containing PQService. Find the file "aimdrs.dat." Right-click on the file and select "Open with" and then "Textpad," "Notepad" or another text editor you prefer.
  • 2 Open the file and find the password. Open the file with your text editor and locate the eRecovery password. Look for a line that reads, "Password=password name," "Hint=the password hint." Write down the password and close the file.
  • 3 Open eRecovery using the recovered password and follow the instructions to create a new password.


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May 23, 2015 | Acer Computers & Internet

2 Answers

I had Windows 8.1 istalled in my Pc but it showed problem now i want to install windows 7. I have windows 7 bootable USB and want clean instalation. i booted from USB and opened stup and formatted my


Simply formatting the hard drive does not remove all residual traces of the previous installation. When you get to the step for formatting, go to the advanced button and delete the partition that contained windows 8. Then create a new partition in the space, format, and install windows 7.

Aug 05, 2014 | Computers & Internet

3 Answers

i want to replace vista with xp, but When I tried to install os it is booting from cd but it is not recognising harddisk


its because of sata hard disk
you have to download sata driver from the website
and copy in to one floppy
connect floppy in to the computer
during boot from the cd
press f6
select which version
follow installation steps

Nov 01, 2009 | Compaq Presario C700T Notebook

2 Answers

Seagate barracuda7200.9 80 gig.


Some of the following answer assumes a windows operating or possibly DOS based operating system. If your original OS was not Windows or DOS -- there may be different considerations.

1) Did you lose the contents of both partitions?
That depends were they soft or hard partitions.
Soft partitions are created as files inside of other partitions
If that is what you had allocated in the formatted partition
you have lost their data content.
Hard or physical partitions allocated using FDISK and some other utilities the second partition would still exist.

2) Where are/were your system files. Often but not always they appear as the first partition of the master drive on the primary IDE controller all assuming a PC (based on the master slave comments you have indicated.) (sometimes the second when diagnostics are loaded on the first partition)

a) if the partition on the drive you formated contained the system files yes they must be installed to access anything on the disk for the most part. A significant exception may be utilization of a DOS boot diskette might permit DOS access to the other partitions if they are formatted with the FAT file system.

NTFS partitions and possibly FAT32 partitions may not be accessible to all versions of DOS -- there may be some bootable CD's that would allow access to NTFS partitions without installing an operating system.

Question back from the DOS and older version of windows days and even some more modern operating systens in subsequent actions with the disk did you use FDISK or another utility to rewrite the boot blocks to point to a different partition?

Question this was not a dual boot machine was it?-- if so disregard anything that follows.

Question did the machine boot after formatting the partition and before you started moving the drives around? If so the operating system is probably on a drive you have removed from the machine. It needs to be replaced onto the same cable position it was originally located upon -- probably on the Primary IDE cable master position or jumper setting.

If not reinstallation of the operating to the formatted partition is probably the correct next step. Be careful in doing this because if you choose one of the other partitions that were not formatted it could wipe out the data in them based on the installation process chosen.

Dec 10, 2007 | Seagate 80GB Barracuda 7200.9 SATA s - 8MB...

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