virtual machine data recovery in san jose & the bay area
VMware, Hyper-V, KVM, VMDK, VHDX, datastore, and snapshot recovery
if your virtual machine failed, we can help recover it
Corrupted VMDK files, damaged VHDX files, deleted snapshots, inaccessible datastores, failed virtual disks, and missing VM data can still be recoverable when the original storage is handled correctly.
With 26+ years of experience, advanced RAID recovery tools, virtual disk recovery methods, and secure lab procedures, Kotar Data Recovery provides VM recovery for businesses, IT teams, developers, and professionals across San Jose, San Francisco, and the Bay Area.
why virtual machine data can still be recoverable
Snapshots, thin provisioning, shared storage, RAID arrays, and virtualized environments can improve flexibility, but they can also create complex points of failure. A virtual machine can become inaccessible after datastore corruption, deleted snapshots, failed backups, damaged virtual disks, or underlying RAID and storage problems.
Our engineers analyze the storage layout, protect the original media, image the safest available copy, rebuild damaged virtual disks, and recover accessible files, databases, and workloads whenever possible.
supported hypervisors and recovery scenarios
We recover data from virtual machines, virtual disks, snapshots, datastores, and common hypervisor storage environments.
VMware environments including ESXi, vSphere, vSAN, VVols, VMFS, and VMDK virtual disks
Microsoft Hyper-V environments including VHD, VHDX, AVHDX, checkpoints, and Hyper-V storage volumes
Linux KVM and QEMU systems including QCOW2, RAW, and Linux-based virtual disks
Citrix Xen and XenServer environments including XVA and VHD-based virtual machines
Other virtual platforms including Oracle VM, VirtualBox, Red Hat Virtualization, VMware Fusion, and VMware Workstation
Recovery scenarios including deleted VMs, corrupted virtual disks, damaged snapshots, overwritten volumes, inaccessible datastores, and failed backups
common virtual machine recovery problems we solve
Failed disks or damaged RAID and SAN arrays affecting virtual machine storage
Deleted LUNs, volumes, or datastores causing missing or inaccessible VM data
Accidental VM or snapshot deletion involving production, backup, or test environments
Formatted or overwritten volumes including VMFS, NTFS, XFS, ZFS, ReFS, and other storage formats
Corrupted virtual disks including VMDK, VHD, VHDX, QCOW2, RAW, and related VM files
Corrupted guest file systems including NTFS, EXT4, XFS, Btrfs, APFS, and Linux server file systems
Hypervisor upgrade or patch failures causing VM boot failure, missing disks, or broken datastores
Malware or ransomware damage inside guest operating systems or shared storage
Snapshot chain problems involving missing, deleted, damaged, or inconsistent snapshot files
Metadata and system-table corruption involving allocation tables, bitmap errors, and damaged virtual disk structures
VMware data recovery
We recover data from VMware ESXi, vSphere, vSAN, VMFS, VVols, VMware Fusion, VMware Workstation, and VMDK virtual disk files affected by corruption, deletion, snapshot errors, datastore problems, RAID failure, or inaccessible virtual machines.
If a VMware datastore is inaccessible or a virtual machine will not boot, avoid deleting snapshots, consolidating disks, reformatting volumes, or rebuilding storage before the system has been evaluated.
Hyper-V data recovery
We recover data from Microsoft Hyper-V environments, including VHD, VHDX, AVHDX, checkpoints, virtual disks, and guest file systems affected by deletion, corruption, failed checkpoints, storage failure, or damaged host volumes.
Our San Jose lab can evaluate the underlying storage, recover accessible virtual disks, and rebuild files from the safest available recovery copy.
datastore and snapshot recovery
Datastore and snapshot problems can make virtual machines appear missing, corrupted, or unable to boot. Common causes include failed backups, deleted snapshots, broken snapshot chains, storage disconnection, thin-provisioning problems, file system corruption, and RAID or SAN failure.
We analyze the virtual machine structure, snapshot chain, datastore layout, and underlying storage before recovering files, virtual disks, or application data.
signs of a failing virtual machine or datastore
Virtual machine crashes, freezes, or fails to boot
Guest OS shows BSOD, kernel panic, or startup errors
Datastore appears inaccessible or shows an unknown partition type
Snapshots are missing, damaged, or showing chain errors
I/O operations are slow, frozen, or showing high latency
Backups fail or checkpoint messages appear invalid
Hypervisor logs show read errors, write errors, or parity errors
Virtual disks appear corrupted, missing, or the wrong size
Applications, databases, or shared folders inside the VM will not open
what you should do and not do
Power off or suspend the virtual machine to stop additional writes to the affected storage.
Do not delete, clone, consolidate, or merge snapshots before the VM has been professionally evaluated.
Do not reinitialize, reformat, or rebuild storage arrays if the VM data is important.
Document the RAID configuration, drive order, storage layout, and recent changes before removing drives or changing the environment.
Export vCenter, host, Hyper-V, or hypervisor logs when available for evaluation.
Avoid running repair tools on the original datastore or virtual disk if the storage is unstable.
Contact professional VM recovery engineers before making additional changes to the host, datastore, RAID array, or virtual disk files.
our 3-step VM recovery process
Free evaluation with storage layout, host logs, virtual disk integrity, and recovery options reviewed before work begins.
Safe imaging and virtual disk reconstruction to protect the original storage, rebuild damaged arrays when needed, and recover accessible VMDK, VHD, VHDX, QCOW2, or RAW files.
VM and file verification with recovered virtual disks, guest file systems, application data, and important files checked before delivery.
how fast do you need your data back?
standard service - recovery during regular business hours
express service - completed in up to 72 hours
24/7 emergency service - round-the-clock recovery on request
why choose kotar for VM recovery
No data, no fee guarantee
Free, secure door-to-door shipping across the Bay Area
Professional San Jose lab serving VM recovery clients across the Bay Area
26+ years of data recovery experience with virtual machines, RAID systems, servers, and business storage
VM recovery tools for VMware, Hyper-V, KVM, Xen, Oracle VM, VMDK, VHD, VHDX, QCOW2, and RAW virtual disks
Advanced RAID and storage recovery for damaged arrays, SAN storage, NAS storage, failed drives, and corrupted datastores
Secure handling for business, legal, medical, engineering, financial, creative, and enterprise data
Transparent pricing with a fixed quote before work begins
Emergency service available for urgent VM and business storage recovery cases
related data recovery services
For damaged RAID arrays, failed rebuilds, or server storage failures, visit our RAID recovery page.
For failed physical drives behind virtual storage, visit our hard drive data recovery page.
For SSD-based virtual storage or failed solid-state media, visit our SSD data recovery page.
For cloud-sync or cloud backup data loss, visit our cloud data recovery page.
For deleted, missing, or formatted files inside virtual machines, visit our lost file recovery page.