![]() ![]() ![]() (Alternatively, you can probably also try to calculate the cluster number as min allowed partition size divided by cluster size, and then run the fsutil command with the appropriate parameters). It also tells you the complete command to run from the command line to get more details about the last unmovable file. The event tells you the last unmovable file or just the number of the last cluster of such a file. Another way to make the system analyze a partition is to run the Windows built-in defragmentation utility. The event is generated when the system analyses a partition, and if you have already tried to shrink a partition via right-clicking on it in the disk management snap-in, then the event should be there. First you need to find the latest event with ID 259 in the Windows Event Log (see Event Viewer / Windows Logs / Application). The following instructions may help you to identify what application or component is preventing your partition to shrink. After that I turned the features back on. I first turned Virtual Memory and System Restore off, removed System Volume Information folders, and after that Disk Management utility allowed me to shrink the C: partition as much as I needed. So, directed by harrymc, I gave Windows Disk Management another try. In the low-level tasks, like working with an HDD system partition, I prefer to use native tools as much as possible, and switch to third-party tools only as a last resort, if none of native tools worked. Possible culprits: Virtual Memory, System Restore and/or Windows Search Index (System Volume Information folder), Hibernation, Internet Explorer temporary files. Given the details from the steps 2 and 3, determine what component, program or feature is locking your partition.For even more details, optionally, run the fsutil command with the appropriate parameters given on step 2.Find the event with ID 259 in the Windows Event Log and see its details.Proceed to the step 2, if the shrink fails. Try to shrink the partition in the Windows Disk Management snap-in. ![]() Since this is a long process, I would like to avoid doing it again :) So, please, suggest only proven solutions. System recovery didn't work, and I had to do factory recover. P.S.: I have tried to use the third-party GParted utility, and after shrinking the partition, Windows 7 stopped booting, with a BSoD. So, is there a way to shrink the C: bootable partition and preserve Windows 7 working? As far as I understand, system unmovable files lie in the middle of the partition, preventing Disk Management utility to do what I want.Īnd since new HP laptops don't come with OS installation disks (they only allow you to create recovery disks yourself), I can't just repartition HDD and then reinstall OS. I would like to split this large C: partition into two partitions, leaving only 100 GiB for the system, and giving the rest to a new data partition.Īlthough the Windows built-in Disk Management utility has an option to shrink the bootable partition, it only allows me to shrink it roughly by half, even though only 20 GiB on the partition is used. It has a 500 GB HDD with three partitions: a small hidden system partition, a 12 GiB HP recovery partition, and a 450 GiB C: boot partition. If you have computer slowness there are a myriad other options you should look into that will be much more effective in speeding the system up.I have just bought an HP laptop with Windows 7 (64 bit). Set a scheduled defrag, don't bother with the -b option, and leave it at that. And as a veteran of corporate and consumer IT support, that's saying something. I can count on one hand the times defragging has actually sped up systems that I have observed. In my experience, people turn to defrag to speed up their systems much too quickly. ![]() Regarding the -b option, I found this explanation:Īpparently your computer already does this regularly, and unless you move massive files frequently across your hard disk drive and restart several times each day, you're not going to notice must of a benefit. That way it keeps the disk to a very low level of fragmentation. I schedule defrag to run for a few hours a couple of nights each week. There are tools you can use that defragment outside of Windows, but Windows' built-in defrag is more than sufficient for most needs. You can schedule a scan disk for before Windows completely loads, but not defrag. Defrag is a Windows program and runs while Windows is running. ![]()
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