Stellar Knowledge Base

Stellar Mac Data Recovery software is scanning my disk for a long time. Can I pause or stop the scan, check the results, and then resume scanning again?

September 12, 2016     24216 views     0     0

The application is taking a long time in scanning the hard disk because either the size of the hard disk is very large or it has bad sectors in it. We suggest you to create an image of the hard disk instead of scanning the original disk as creating an image will save time. It is not possible to pause the scanning, you can only stop it. Once you stop the scan, you can recover only the data listed in the tree.


35 User Comments

Esta Evans
October 7, 2014 03:55 pm

Does this apply to switching to purchased software after using the demo software and stopping it to switch during the scan?

Amit Pandey
October 9, 2014 03:35 am

Hi Esta,

Yes it does apply to registered version. Once scan is stopped in between, it will recover only the data listed in the tree.

Hope it helps!!

March 5, 2015 04:41 am

How long does it usually take to finish scanning an entire 1TB external drive? It has been 11 hours and it's still not done. :( Thanks

Amit Pandet
March 11, 2015 06:20 am

Hi Aika,

There is no definite time set for the software to complete the scan. Scan time depend upon the size of the drive. In 1TB drive size, the software will take hours to scan the entire disk. The software may also take time due to presence of bad sectors on the disk.

We advise you to be patient and let the scan complete. If it doesn't then please image the drive using 'Create Image' feature of the software. Once the Image is created you can load the image through 'Resume Recovery' and run scan.

Hope this helps!!

Please let us know your further issues.

May 11, 2015 02:16 pm

So I have a 1TB external drive, and it's going through the sectors.... but it has taken 4 days to go through ONE of the rows of sectors shown. There are 25 rows. So according to that, it's going to take 100 days to get through the drive. That seems a little lengthy.

There was only one lost sector found so far, and that was the very first one. But I don't dare stop the scan, because it's suppose to restore only what has been scanned.

I can't take an image of the drive, because the drive won't mount. (Long story.)

Is there a chance it will speed up? Or am I just stuck?


May 18, 2015 05:48 pm

Have a damdged hdd with raw partition.
Used realy a dozzen data recovery programs.
Finaly stellar is the only one hwo seems to be affective.
Its scanning now for 2 days continusly.

But how long will it thake?????????

There are 976773168 sectors on the hdd.
Its yet just at 1234944 sectors.

Zo it looks like it will take weeks to read all the sectors.
is that correct???

Is it possible to pause ore stop the scanning?
If I stop scanning, can I resume from the part where i stoped?

Like to here from you.

Thanks Marc

Amit Pandey
May 20, 2015 04:52 am

Hi Matt,

We advise you to image your entire 1 TB hard drive using 'Create Image' option. Since 1 TB is large drive, you can image first half and second half of the drive separately. Later, you can use Resume Scan to launch recovery for these image files.

Hope this helps!!

Let us know for further query.

Amit Pandey
May 20, 2015 04:54 am

Hi Marc,

Is it damaged logically or physically? Scan time stretches when the drive has bad sectors or corrupt file structure. Use 'Create Image' option to image the entire damaged hard drive. If your drive is large then you can create 2 images of your hard drive. For Instance, if your hard drive has 100 sectors, then image first 0-50 then create second image from 51-100. Now use 'Resume Scan' option to scan these image files. This will reduce your time and effort.

Do let us know your further query.

January 10, 2016 05:49 am

If you start a scan and then stop it after a minute with nothing showing, can you rescan the disk again properly from the beginning or will the first interrupted scan "results" be all you can recover?

Amit Pandey
January 11, 2016 03:00 am

Hi Joe,

Yes, you can restart the scan from the beginning but you have to wait for the scan to complete. Once it gets completed, you can preview and recover files.

Hope this helps.

April 15, 2016 03:32 pm

Hi, I ran the software and half way through it stopped and my computer restarted. I re ran the scan but it doesn't seem to have recovered anything. What should I do?

Amit Pandey
April 19, 2016 02:30 am

Hi Imi,

Please follow below steps:

1) Uninstall the Stellar Mac data recovery software by dragging it to trash.
2) Reinstall the software again on Mac OS X.
3) Select your Mac hard drive and launch the scan.

Try the above solution and if problem exists, do let us know.


July 17, 2016 06:37 pm

I'm scanning my Time Machine drive since I accidentally deleted some important backups. The drive is 2TB and I chose "Quick Recovery"...
It's running for three days now. It's nit stuck, it progresses slowly and for over two days now it says:
"Performing Quick Recovery...
Updating directory entries(1847476), Please wait..."
The number changes and the bar is progressing and starting anew, progressing and starting anew, the number gets bigger.
What does this mean? How many days will this take?
It surely can't be healthy for the drive to run days and days and days. Anything I can do to speed it up? Am I supposed to check "Put hard disks to sleep when possible" in the system preferences?
Thanks for the help ...

Amit Pandey
July 19, 2016 03:43 am

Hi Marc,

Kindly unchecked this option in the System Preferences << Energy Saver << “Put hard disks to sleep when possible”
If the sectors are increasing that means the scan is in progress and should not be stopped, This will not impact the drive in any way. Please let the scanning continue , for any further queries contact our support team using below details. and +1-877-778-6087

August 17, 2016 04:01 am

I tried using Stellar Data recovery but it's stopping from time to time. Is it transferring files already to my laptop because I don't have space anymore :( I thought I could transfer it to my new hard drive.

Amit Pandey
August 17, 2016 10:53 am

Hi Cath,

Could you let us know the version of the Stellar Mac data recovery software and your OS X?
Uninstall and re-install Stellar Mac Data Recovery software. Also, it doesn’t transfer or save files in the demo version. To save the recovered files, registration is required.

Hope this helps!!

April 3, 2017 07:38 pm

Hi my laptop has finally stopped scanning my hard drive and now is putting the files back on the laptop can I pause it and carry on tomorrow because I can't leave laptop on over night thanks

Amit Pandey
April 4, 2017 11:26 am

Hi Bill,

You mean to say that software is saving all recovered files to another drive and you want to pause the process? Unfortunately, you cannot pause the saving process once it has begun. You can only stop it but cannot pause the same. It is advised to let the software complete the process.

However, before saving the files (through Recover button), you can use 'Save Scan Information' feature which allows saving the scan information to resume recovery process at a later stage.


April 6, 2017 01:28 pm

Is there a quicker way of recovering the photos which have been found because it's taking so long to put them back on my laptop, can you not just click save a whole lot in bulk instead of 1 pic at a time thanks for replying

Amit Pandey
April 7, 2017 09:40 am

Hello Bill,

You can minimize the scan time and recovery of your lost photos by selecting the "Advance Scan" option. You can select your specific file types or a particular range to perform selective recovery of your lost files.

Chase sykes
May 19, 2017 05:46 pm

I've been scanning my drive for around 5 hours now and its been stuck on the same sector for 4 hours out of the 5. So far out of my terabyte I've gotten 2700 files back from the scan which is great, but its still at 0% which I do understand since its a large drive, but is being on the same sector for this long normal? The program is still responding it seems since I can move the scroll bar around, but my CPU memory is heavily bogged down, so I figure its still scanning. Just want to make sure this is normal for it to take this long on the same sector since i don't know if I should restart it or not to save time already spent.

Chase sykes
May 19, 2017 05:46 pm

I've been scanning my drive for around 5 hours now and its been stuck on the same sector for 4 hours out of the 5. So far out of my terabyte I've gotten 2700 files back from the scan which is great, but its still at 0% which I do understand since its a large drive, but is being on the same sector for this long normal? The program is still responding it seems since I can move the scroll bar around, but my CPU memory is heavily bogged down, so I figure its still scanning. Just want to make sure this is normal for it to take this long on the same sector since i don't know if I should restart it or not to save time already spent.

May 19, 2017 08:24 pm


Kindly let us know the below points in order to analyze your issue properly:

1. The reason of data loss.
2. Scanning option (name) performed in our software.

As you have confirmed that your hard drive size in terabytes, hence our software will take the time to scan your hard drive completely. If our software stuck on a particular sector in order to scan, it means there are some bad sectors on your hard drive.

Hence we recommend you to create an image of your hard drive from the "create image" option in our software.

July 24, 2017 05:08 am

Hi! I am in the process of scanning my Passport for Mac external drive, which as of today stopped being recognized by both my Mac Mini and my MacBook. The scan has been going for about 8 hours and is about two-thirds of the way through the first row. It was slowest for the first few boxes where a lost volume was found, and seems to be moving more quickly now, although it will still take weeks to scan at this rate...

I am wondering if I can click "stop scan" at this point since it did find a lost volume, and that is probably what was causing the problem. Will the program be able to recover files from that lost volume if I stop the scan in the middle? Are there any risks to stopping the scan?

Also, is it OK to use the computer on which the scan is taking place to do other things - work in Google Docs? watch videos online? watch DVDs?

Finally, assuming the program can recover my files, will they be in their original folders/formats (for example, my Photos library)? Will they be ready to put onto a new drive and use as usual?

Thank you!

Stellar Support
July 24, 2017 06:57 am


You can stop the scan if you have found the volume in the software.

Software is a read only application and it will not make any changes to your drive even if you stop the scan.

Kindly do not use the external hard drive on which you are performing the scan. You may use google docs, play videos online as they are using your internal drive and not the external drive.

Software will recover the data in the same manner as shown in the preview. You need to save the recovered files in another external hard drive or on your internal drive. Software will not allow you to save the recovered files back to the same drive from which you are trying to recover them as it may cause overwritten activity on the drive.

Stellar Support

August 7, 2017 02:02 am

Ok so i am trying to recover 930GB of data from a '1TB WD passport for mac external hardrive'

the drive shows up in 'disk utility' but DOES NOT MOUNT..

So far i have;

started an 'advanced scan' and waited patiently for 5-6 days until i got up in the morning to find that the program had closed with no trace of recovered files or even a warning or error message..

i then proceeded to perform a 'quick scan' which is now on its 3rd day of 'updating directory entries' and has reached (1893560) which i believe is only a small fraction of my total entries..

i have read through all of the FAQ's, and back & forth responses on this forum... one thing that no one has answered clearly is... IF you are stuck in the position that i am in, is it more beneficial to option 1: leave it for what seems like 100 days to do its thing (surely no program expects your computer to run for that long AND i cant afford to have a computer completely out of action for 100 days, let alone the fact that i need my hard drive data asap)
or option 2: stop the scan, 'image the drive' and began a new scan using the 'image'.

i am also under the impression that as the directory entries and updated they should be popping up one by one? on my program there is literally no sign of files or a file tree once the scan had begun, it is a blank page that says 'scanning in progress' can anyone confirm whether there is something im missing?


Stellar Support
August 7, 2017 11:14 am


We recommend you to stop the scan and create the image of the drive. Now scan the image file and once the scanning is completed then you will be able to check the files which can be recovered.

Software will recover the files in the same manner as shown in the preview window.

Stellar Data Recovery

Dan Lockhart
January 9, 2018 01:59 pm

I am new to Stellar WIndows Data Recovery. It is showing a size of 0 for all of the hard discs (4) I have removed from my (previously working) computer. I Two discs are 1 TB, one is 400nGB, and the other one is 250 GB. push Search and Deep Scan. It is giving no indication that it is doing anything. How do I know it is working or not? Can I get it to peer into these discs?

V Kumar
February 10, 2018 02:04 pm

I am running the scan of Stellar Windows Data Recovery on 1TB disk and the executable failed after 3 hours. I have started the process again. Does the application remember the last run or does it start from the beginning? I read somewhere that I need to reinstall the application so the recovery process can recover without loosing anything from the previous run.
Thanks for your help in advance.

February 23, 2018 05:56 pm

I've been running raw recovery for several days. As with others, it looks like it will take weeks to complete the scan of my 1 TB drive (of which I only used ~300GB). I KNOW that you direct folks to create an image of the drive and scan the image, but if I stop the scan now to create an image, will I risk losing data or only recovering what has been recovered thus far? I don't want to jeopardize anything by stopping the scan now, but I also think its insane to have this run day and night for months!! Any help?

Stellar Data Recovery
February 23, 2018 10:30 pm


Thank you for contacting Stellar Data Recovery.

We would like to inform you that we have sent you an email for assisting you further regarding the query on your email address.


Stellar Data Recovery

March 29, 2018 07:36 am

My 1TB external hard drive was saying format hard drive before use after it mistakenly ejected from the PC. I use windows 7.
I'm using Stellar to fix scan and fix it but its 38hrs now
It has read 447596544 out of 1953521664 sectors.

Evn though it has scanned for 38hrs, it shows it has scanned for 17hrs
It initially said scanning will take 15hrs, then it went to 30hrs later to 70hrs thn to 32hrs now it says 59hrs.

Its on phase 1 of 7.

No files found yet.

Whats the assurance its gonna find files and what will happen if I stop it? Will I lose files?


Stellar Data Recovery
March 29, 2018 10:01 am


Thank you for contacting Stellar Data Recovery.

We would like to inform you that the scanning time depends on a lot of factors like capacity of the drive, severity of corruption, type of files in the drive etc. Therefore we can’t give you an estimate about the scanning time.

As long as the software is not getting stuck during scan, we suggest you to kindly continue with the scan. The files will be get listed once the reading of sectors will be completed.

Our software works on “preview” basis. It means if you are able to see the preview in the software then recovery will be possible from software.


Stellar Data Recovery

Asher Kelman
April 10, 2018 05:15 am

How long does it take to repair a 3TB LA Cie external HD via USB 3 on a Mac Pro High Sierra.

I can't find a place to enter my registration key? There is only an option for buying but I already have my key for Phoenix Data Revoery

I am writing a review for Open Photography forums on repair Utilities. Prosoft Engineering Data Rescue 5 got no files. Do your Data, rescued 2.9 TB of beautifully ordered properly named appropriate sizes files but all 100,000 files are corrupted and no image file will open except for 1 jpg! No PDF files either!

April 10, 2018 06:33 am


Thank you for contacting Stellar Data Recovery.

We would like to inform you that we have sent an email to your email address regarding for the same.


Stellar Data Recovery


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