What secret super-hidden files (or whatever) are taking up my hard 2TB of my hard drive? [duplicate]











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  • How can I visualize the file system usage on Windows?

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I have a 5TB hard drive (4.54TB in reality). Properties tells me I've used 4.45TB. It includes one system backup of roughly 1.8TB.



I decided to move everything (except system files, recycle bin, and that backup) to a new drive. Windows 7 tells me I'm moving 587GB. I've set all hidden and system files to be visible.



How is that one backup plus the rest of the files -- which together are about 2.5TB -- somehow amount to 4.45TB? What am I missing here?










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marked as duplicate by Ramhound, Scott, Pimp Juice IT, bertieb, DrMoishe Pippik Dec 2 at 2:12


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  • Look up "alternate data streams"
    – K7AAY
    Dec 2 at 1:39















up vote
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This question already has an answer here:




  • How can I visualize the file system usage on Windows?

    21 answers




I have a 5TB hard drive (4.54TB in reality). Properties tells me I've used 4.45TB. It includes one system backup of roughly 1.8TB.



I decided to move everything (except system files, recycle bin, and that backup) to a new drive. Windows 7 tells me I'm moving 587GB. I've set all hidden and system files to be visible.



How is that one backup plus the rest of the files -- which together are about 2.5TB -- somehow amount to 4.45TB? What am I missing here?










share|improve this question















marked as duplicate by Ramhound, Scott, Pimp Juice IT, bertieb, DrMoishe Pippik Dec 2 at 2:12


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.















  • Look up "alternate data streams"
    – K7AAY
    Dec 2 at 1:39













up vote
0
down vote

favorite









up vote
0
down vote

favorite












This question already has an answer here:




  • How can I visualize the file system usage on Windows?

    21 answers




I have a 5TB hard drive (4.54TB in reality). Properties tells me I've used 4.45TB. It includes one system backup of roughly 1.8TB.



I decided to move everything (except system files, recycle bin, and that backup) to a new drive. Windows 7 tells me I'm moving 587GB. I've set all hidden and system files to be visible.



How is that one backup plus the rest of the files -- which together are about 2.5TB -- somehow amount to 4.45TB? What am I missing here?










share|improve this question
















This question already has an answer here:




  • How can I visualize the file system usage on Windows?

    21 answers




I have a 5TB hard drive (4.54TB in reality). Properties tells me I've used 4.45TB. It includes one system backup of roughly 1.8TB.



I decided to move everything (except system files, recycle bin, and that backup) to a new drive. Windows 7 tells me I'm moving 587GB. I've set all hidden and system files to be visible.



How is that one backup plus the rest of the files -- which together are about 2.5TB -- somehow amount to 4.45TB? What am I missing here?





This question already has an answer here:




  • How can I visualize the file system usage on Windows?

    21 answers








windows-7 hard-drive






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edited Nov 28 at 13:05









Dave M

12.7k92838




12.7k92838










asked Nov 27 at 2:43









Andy Klein

1




1




marked as duplicate by Ramhound, Scott, Pimp Juice IT, bertieb, DrMoishe Pippik Dec 2 at 2:12


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.






marked as duplicate by Ramhound, Scott, Pimp Juice IT, bertieb, DrMoishe Pippik Dec 2 at 2:12


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • Look up "alternate data streams"
    – K7AAY
    Dec 2 at 1:39


















  • Look up "alternate data streams"
    – K7AAY
    Dec 2 at 1:39
















Look up "alternate data streams"
– K7AAY
Dec 2 at 1:39




Look up "alternate data streams"
– K7AAY
Dec 2 at 1:39










1 Answer
1






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0
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There are a few things you can try here.



First, you can analyze the fragmentation of your drive. It really shouldn't amount to that much space, but it's worth checking. You can do that with the built in defrag, or another tool like Defraggler.



Another thing to try is a disk usage analysis tool like Treesize to see what's taking up space (make sure to run as admin to find the hidden files).



A common culprit of high disk usage is the page file - you could try to reduce its size, or at least see how large it is currently by following these instructions.



Perhaps you'll find the cause using one of these avenues.






share|improve this answer





















  • Pagefiles are normally tens of gigabytes. He's missing terabytes.
    – Loren Pechtel
    Nov 27 at 3:15










  • This doesn't seem to answer the question.
    – Blackwood
    Nov 27 at 3:16










  • Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
    – Andy Klein
    Nov 27 at 6:10


















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
0
down vote













There are a few things you can try here.



First, you can analyze the fragmentation of your drive. It really shouldn't amount to that much space, but it's worth checking. You can do that with the built in defrag, or another tool like Defraggler.



Another thing to try is a disk usage analysis tool like Treesize to see what's taking up space (make sure to run as admin to find the hidden files).



A common culprit of high disk usage is the page file - you could try to reduce its size, or at least see how large it is currently by following these instructions.



Perhaps you'll find the cause using one of these avenues.






share|improve this answer





















  • Pagefiles are normally tens of gigabytes. He's missing terabytes.
    – Loren Pechtel
    Nov 27 at 3:15










  • This doesn't seem to answer the question.
    – Blackwood
    Nov 27 at 3:16










  • Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
    – Andy Klein
    Nov 27 at 6:10















up vote
0
down vote













There are a few things you can try here.



First, you can analyze the fragmentation of your drive. It really shouldn't amount to that much space, but it's worth checking. You can do that with the built in defrag, or another tool like Defraggler.



Another thing to try is a disk usage analysis tool like Treesize to see what's taking up space (make sure to run as admin to find the hidden files).



A common culprit of high disk usage is the page file - you could try to reduce its size, or at least see how large it is currently by following these instructions.



Perhaps you'll find the cause using one of these avenues.






share|improve this answer





















  • Pagefiles are normally tens of gigabytes. He's missing terabytes.
    – Loren Pechtel
    Nov 27 at 3:15










  • This doesn't seem to answer the question.
    – Blackwood
    Nov 27 at 3:16










  • Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
    – Andy Klein
    Nov 27 at 6:10













up vote
0
down vote










up vote
0
down vote









There are a few things you can try here.



First, you can analyze the fragmentation of your drive. It really shouldn't amount to that much space, but it's worth checking. You can do that with the built in defrag, or another tool like Defraggler.



Another thing to try is a disk usage analysis tool like Treesize to see what's taking up space (make sure to run as admin to find the hidden files).



A common culprit of high disk usage is the page file - you could try to reduce its size, or at least see how large it is currently by following these instructions.



Perhaps you'll find the cause using one of these avenues.






share|improve this answer












There are a few things you can try here.



First, you can analyze the fragmentation of your drive. It really shouldn't amount to that much space, but it's worth checking. You can do that with the built in defrag, or another tool like Defraggler.



Another thing to try is a disk usage analysis tool like Treesize to see what's taking up space (make sure to run as admin to find the hidden files).



A common culprit of high disk usage is the page file - you could try to reduce its size, or at least see how large it is currently by following these instructions.



Perhaps you'll find the cause using one of these avenues.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 27 at 2:52









flowermouth

11




11












  • Pagefiles are normally tens of gigabytes. He's missing terabytes.
    – Loren Pechtel
    Nov 27 at 3:15










  • This doesn't seem to answer the question.
    – Blackwood
    Nov 27 at 3:16










  • Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
    – Andy Klein
    Nov 27 at 6:10


















  • Pagefiles are normally tens of gigabytes. He's missing terabytes.
    – Loren Pechtel
    Nov 27 at 3:15










  • This doesn't seem to answer the question.
    – Blackwood
    Nov 27 at 3:16










  • Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
    – Andy Klein
    Nov 27 at 6:10
















Pagefiles are normally tens of gigabytes. He's missing terabytes.
– Loren Pechtel
Nov 27 at 3:15




Pagefiles are normally tens of gigabytes. He's missing terabytes.
– Loren Pechtel
Nov 27 at 3:15












This doesn't seem to answer the question.
– Blackwood
Nov 27 at 3:16




This doesn't seem to answer the question.
– Blackwood
Nov 27 at 3:16












Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
– Andy Klein
Nov 27 at 6:10




Thanks! Treesize, which I opened as administrator, showed that a folder that showed as 0 bytes in both Properties and Windows Explorer, actually contained a backup and its updates. Now Ihave to figure out which update (the one I first saw or the one I'm now also seeing) is the more recent. I think I can figure out that one myself.
– Andy Klein
Nov 27 at 6:10



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