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Since earlier this week, my laptop becomes unresponsive when logging into windows. Disk C: is always at 100%. Windows will only be usable and lag free after around 15 mins. Open Resource Monitor shows me that these are usually the causes: pagefile.sys, softwaredistribution/datastore, app/data/local/comms/unistoredb/store

Also, my shutdown and boot times are prolonged. Booting would take 20 mins or more. The screen would get stuck at the manufacturer logo and the loading of windows.

I have already disabled windows apps from running in the background, disabled superfetch and windows search.

I have run full anti-virus scans and chkdsk scans, but they don't report any problems.

Logging onto different windows accounts doesn't solve it. I also removed my windows account and emails (mail and calendar apps)

All my drivers are up-to-date as well.

The last solution i haven't tried is doing a reset but as much as possible, i don't want to lose my installed programs

My machine: i5 processor, 4gb RAM, 1TB hard drive (Drive C: 209/372 GB, Drive D: 156/537)

sigs
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  • By C: disk is always at 100%, do you mean the processor %? Or, the actual space left seen from `My Computer` is at 0? If this is processor usage, you need to isolate the application causing this. You've mentioned pagefile.sys, if so, try changing how much memory is paged: http://windows.microsoft.com/en-us/windows/change-virtual-memory-size#1TC=windows-7 – Dandy Feb 05 '16 at 06:08
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    Also check you hard drive for errors. I had a drive that would act like this and it eventually currupted. – NetworkKingPin Feb 05 '16 at 07:49
  • Check your hard drive for SMART errors [How can I read my hard drive's SMART status in Windows 7?](http://superuser.com/q/29240), and [What is the easiest method of checking SMART status for your hard drive?](http://superuser.com/q/14803) – DavidPostill Feb 05 '16 at 10:07
  • @AaronLayfield by 100% I mean the active time/disk transfer rate, not the storage in My Computer. I have changed the paging memory values. Initial: 200 MB, Maximum size : 1393 MB but to no effect. I have identified the processes/services causing this which is coming from the Unistore folder but have no idea how to stop these at startup – sigs Feb 07 '16 at 01:40
  • @NetworkKingPin I checked for errors but none showed. Both in chksdsk and analyze for defrag – sigs Feb 07 '16 at 01:42
  • Same issue on my win 10 for months even after *several* full resets. Resolved recently *maybe* by win updates or *Piriform Defraggler* (x64,i7,12GB,1TB) – NVZ Feb 08 '16 at 19:03

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