Posted November 26, 2015 Hello, When I was freeing up some space on hard disk, I noticed that I have over 18 GB difference between size of files of hard disk and current size of hard disk. I have cleaned my pc with CCleaner and made sure there is nothing in Recycle bin. But there are still those 18 GB that I don´t know what are used for (yes I have all invisible files shown). I´m running W8.1 64bit for about 1 year without reinstall. Any ideas what could I do except reinstalling? Thanks in advance, Mmat Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Check: System -> advanced system settings -> system protection -> Configure (with C: selected) Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 hi try disk cleanup you see this? this is my signature. btw im Norwegian Spoiler CPU - Intel I7-5820K, Motherboard - ASUS X99-A, RAM - Crucial DDR4 Ballistix Sport 16GB, GPU - MSI Geforce GTX 970, Case - Cooler Master HAF XB evo, Storage - Intel SSD 330 Series 120GB - OS, WD Desktop Blue 500GB - storage 1, Seagate Barracuda 2TB - storage 2, PSU - Corsair RM850x (overkill i know), Display(s)- AOC 24" g2460Pg, Cooling - Cooler Master Hyper 212 Evo, 2 Noctua 120mm PWM, 1 Corsair 120mm AF RED LED, Keyboard - SpeedLink VIRTUIS Advanced, Mouse - razer deathadder chroma, Sound - Logitech Z313, SteelSeries Siberia V2 HyperX Edition, OS - Windows 10 (prefer windows 7) Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Its normal, re-installing will do nothing. Windows allocates space for metadata. Right click any of those files, then click properties, and you'll notice 2 sizes, "size" , and "size on disk" Notice the "size on disk" is always larger, even if by small amounts, because of metadata that is not calculated when you look at the size of files. But it is calculated when you look at the size of the disk. Which is why the discrepancy. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Author Hadn´t thought of that but still only 4 GB. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Its normal, re-installing and disk cleanup will do nothing. Windows allocates space for metadata. Right click any of those files, then click properties, and you'll notice 2 sizes, "size" , and "size on disk" Notice the "size on disk" is always larger, even if by small amounts, because of metadata that is not calculated when you look at the size of files. But it is calculated when you look at the size of the disk. Which is why the discrepancy. Here is a screenshot of what I'm talking about Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Use a program like "file sniffer" to find out where the space has gone to. PC SPECS: CPU: Intel Core i7 3770k @4.4GHz - Mobo: Asrock Extreme 4 (Z77) - GPU: MSI GeForce GTX 680 Twin Frozr 2GB - RAM: Crucial Ballistix 2x4GB (8GB) 1600MHz CL8 + 1x8GB - Storage: SSD: Sandisk Extreme II 120GB. HDD: Seagate Barracuda 1TB - PSU: be quiet! Pure Power L8 630W semi modular - Case: Corsair Obsidian 450D - OS: Windows 7 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Author Matt420740 I see what you mean. TY. I didn´t know there was difference. So there is nothing else I could do? I also found some topics about W10 pre downloading via Windows upgrades. Couldn´t this be that case? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Yes that can also contribute to the problem. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted November 26, 2015 Surprisingly pagefile.sys and hiberfile.sys were not mentioned yet. Those could theoretically attribute to much more than 18GB. Use TreeSize free started as admin too see those and all other files. Don't just delete them though as they are system files. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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