Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Lost access to Windows 7 Drive (Dual-Boot Windows 7 & Ubuntu)

26 Aug 2012   #1

Windows 7 Ultimate x32
Lost access to Windows 7 Drive (Dual-Boot Windows 7 & Ubuntu)

I lost access to my windows 7 drive (Dual-boot windows 7 & Ubuntu). every time I try to run Windows 7 I get the message: Bootmgr is compressed, Press CTRL_ALT-DEL to restart. I could run Bootrec /fixmbr or diskpart or attrib to rebuild my mbr table through DOS command window using my windows 7 recovery CD. The problem I cannot access drive C: where my windows 7 are. I get the error message: Cannot open volume for direct access or system cannot find the drive path or specified. I still can access all my windows folders and files through home folder in Ubuntu. I don't want to reformat and reinstall windows. Is there is a way to run the DOS commands within Ubuntu or any other advice to how to fix this issue.

My System SpecsSystem Spec

26 Aug 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Ult. x64 Windows 8.1 x64


Please see whether the steps outline in this tutorial will be of help:

MBR - Restore Windows 7 Master Boot Record

My System SpecsSystem Spec
26 Aug 2012   #3

Windows 7 Ultimate x32

Thanks Golden. I did go through it, but with no luck. I still cannot find or open windows 7 drive C:
My System SpecsSystem Spec

26 Aug 2012   #4
Microsoft MVP


If the Bootmgr is truly compressed then you'll need to boot in using DVD/Repair CD to decompress the files to get it to boot as shown here: BootMGR Compressed Message at Boot Fix - Vista Forums

Once you know the files are decompressed if it still won't start then Mark Win7 Partition Active and run Startup Repair - Run 3 Separate Times.

GRUB can corrupt Windows 7 beyond repair in some cases, but to know you've done everything possible there are also these further steps for Troubleshooting Windows 7 Failure to Boot
My System SpecsSystem Spec

 Lost access to Windows 7 Drive (Dual-Boot Windows 7 & Ubuntu)

Thread Tools

Similar help and support threads for2: Lost access to Windows 7 Drive (Dual-Boot Windows 7 & Ubuntu)
Thread Forum
Dual Boot Windows 7 and Ubuntu Tutorials
Solved Windows 7 Dual Boot Can't Access Inactive Partitions C: Drive Installation & Setup
XP cannot access other drive with Windows 7 dual boot General Discussion
Had dual boot for windows and Ubuntu, lost windows, help? Installation & Setup
Trying to Dual-Boot Windows 7 and Ubuntu Installation & Setup
Windows 7 and Ubuntu dual-boot Installation & Setup
Lost Dual Boot Screen?...Lost Windows 7 General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:08 AM.
Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33