Managing hiberfil.sys is one of the easiest ways to reclaim gigabytes of storage without deleting personal files. Choose the method that matches your workflow, and enjoy the extra space.

For users on SSDs or laptops with limited storage, this file can feel like a luxury you cannot afford. But before you delete it manually (which will fail due to system protection), you need to understand what it does and how to safely remove it—or simply shrink it. hiberfil.sys is a system file created by the Windows Kernel Power Manager. Its primary job is to store a copy of your system memory (RAM) when the computer enters a power-saving state.

Run the same terminal as admin and type powercfg /h on . Method 2: Keep Fast Startup But Shrink hiberfil.sys (Recommended for Laptops) If you want to keep Fast Startup but don’t need full Hibernation, you can reduce hiberfil.sys to about 20% of your RAM instead of 100%.

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Perfect Data is a trusted and superiorly working tools for Thunderbird, email recovery and cloud migrations etc.
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OST Converter is a trusted tools for Email Migrations to Gmail/Yahoo!Mail/IMAP and Office 365.
OST to PST Converter

OST to PST Converter Advance Features

Perfect Data Solutions OST to PST - OST to PST Conversion software convert emails from MS Exchange OST to Outlook PST file. OST Recovery Tool also Convert OST data to PST, Office 365, EML, MSG, MBOX, HTML and PDF.

OST File Converter
Multiple Conversion of OST File
Multiple Conversion of OST File

OST Converter Tool help to converter multiple outlook ost file to PST, EML, MSG, MBOX, PDF etc

Gsuite/ Gmail Migrations
Gsuite/ Gmail Migrations

OST Converter Tool Migrate Cloud One or Multple OST File to Gmail/Gsuite

Cloud Office 365 Migrations
Cloud Office 365 Migrations

OST Converter Tool Migrate Cloud One or Multple OST File to Office 365 Mailbox

Instant License Key Delivery
Instant License Key Delivery

Autometically license key delivery on your purchase email address.

SYSTEM REQUIREMENTS

Free Demo version will generate Preview of complete OST file data & Export only 30 Items per Folder. To convert complete data, buy PDS OST converter full version. It is capable to convert OST to PST, PDF, vCard, ICS, HTML, MBOX, MSG, EML, EMLX, Gmail and Office 365.

Hard Disk Space

500 MB of free hard disk space required

Processor

Pentium Class, Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz

Memory

4 GB of RAM (4 GB is recommended)

Operating System

Windows 10, 8, 7 (32 bit or 64 bit) & All Windows Server 2016.

Outlook Compatible

Microsoft Outlook 2000, 2003, 2007, 2010(32/64 bit), 2013 (32/64 bit), 2016 (32/64 bit), 2019 (32/64 bit)

Application Pre-Requisites

If you are using Windows 10, 8, 7 (32 bit or 64 bit). Microsoft .NET framework 3.5 or above should be installed.

Windows 11 Disable Hiberfil Sys [exclusive] May 2026

Managing hiberfil.sys is one of the easiest ways to reclaim gigabytes of storage without deleting personal files. Choose the method that matches your workflow, and enjoy the extra space.

For users on SSDs or laptops with limited storage, this file can feel like a luxury you cannot afford. But before you delete it manually (which will fail due to system protection), you need to understand what it does and how to safely remove it—or simply shrink it. hiberfil.sys is a system file created by the Windows Kernel Power Manager. Its primary job is to store a copy of your system memory (RAM) when the computer enters a power-saving state.

Run the same terminal as admin and type powercfg /h on . Method 2: Keep Fast Startup But Shrink hiberfil.sys (Recommended for Laptops) If you want to keep Fast Startup but don’t need full Hibernation, you can reduce hiberfil.sys to about 20% of your RAM instead of 100%.

Frequently Asked Questions

Advance OST to PST Conversion Tool If your OST file is encrypted then no need to worry because this OST to PST Converter is capable to convert encrypted OST file into desired formats without any anxiety.
Perfect Data Solutions OST to PST converter is a reliable OST Email Recovery Utility, it uses advance algorithms and latest email conversion techniques to scan orphaned or damaged exchange offline storage files (.ost) and recover your email messages
Yes, Convert OST to PST Software supports selective conversion process; you can select the emails one by one by clicking check box button and export all the selected OST emails into PST file with complete email properties
Six formats are given; you can convert your OST Emails into PST, EML, MSG, HTML, PDF and MBOX.
Under demo, you are able to restore 30 emails per OST folders into PST, EML, MSG, HTML, PDF and MBOX at free of cost
Still have a question? Reach out to us: support@perfectdatasolutions.com
Frequently Asked Questions

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Related Topics PDS OST Converter Tools

PDS OST to PST Converter

Microsoft Outlook OST File Convert into Outlook PST Format Which is (Supportred Outlook Version 2003 upto 2021)

PDS OST to EML Converter

Easy to Convert Outlook (*.ost) File Items into Windows or Apple Mail (*.eml) File Format.

PDS OST to MSG Converter

Export Microsoft Outlook (*.ost) File Items into Microsoft Outlook Message (*.msg) File Format.

PDS OST to MBOX Converter

Extract OST to MBOX File format which is use for Thunderbird, Apple Mail etc, email clients.

PDS OST to PDF Converter

Export Outlook OST File Mailbox Email Items into Portable Document Format (*.PDF) Format

PDS OST to Gmail Migrations

Cloud Migrate Outlook (*.ost) File Items into Gmail/G-Suite, Yahoo! Mail, Rediff Mail and IMAP Account.

PDS OST to Office 365 Migrations

Migrate Outlook OST Mailbox Items into Live Office 365 Mailbox users Account by Both Single Authentication and MFA(Azure App Registration)

How to import OST file in Office365?

I have discussed two methods for converting the OST file Database to Personnel Storage Table (PST).

Outlook (PST) Format from Corrupted OST file

First you need the fast recap of MS Outlook and their supported Formats i.e. OST and PST Format

Quality Assurance
Quality Assurance

We guarantee to deliver 100% quality.

30 - Days Refund Policy
30 - Days Refund Policy

All Product insured under 30 - day money back

Technical Support
Technical Support

Get 24 X 7 X 365 rounded the clock technical support.

Product Delivery
Product Delivery

Instant License Key Email Delivery Autometically